27#include "moc_qgsvectorlayer.cpp"
94#include <QPainterPath>
96#include <QProgressDialog>
100#include <QStringBuilder>
102#include <QUndoCommand>
105#include <QRegularExpression>
122#ifdef TESTPROVIDERLIB
128 const QString &qmlStyle,
129 const QString &sldStyle,
130 const QString &styleName,
131 const QString &styleDescription,
132 const QString &uiFileContent,
146 QStringList &descriptions,
164 const QString &baseName,
165 const QString &providerKey,
171 , mAuxiliaryLayer( nullptr )
172 , mAuxiliaryLayerKey( QString() )
173 , mReadExtentFromXml( options.readExtentFromXml )
174 , mRefreshRendererTimer( new QTimer( this ) )
185 mGeometryOptions = std::make_unique<QgsGeometryOptions>();
189 mStoredExpressionManager->setParent(
this );
192 mJoinBuffer->setParent(
this );
197 if ( !vectorLayerPath.isEmpty() && !
mProviderKey.isEmpty() )
208 mDataSourceReadOnly =
true;
210 setDataSource( vectorLayerPath, baseName, providerKey, providerOptions, providerFlags );
213 for (
const QgsField &field : std::as_const( mFields ) )
215 if ( !mAttributeAliasMap.contains( field.name() ) )
216 mAttributeAliasMap.insert( field.name(), QString() );
222 if ( !mTemporalProperties->
isActive() )
247 connect( mRefreshRendererTimer, &QTimer::timeout,
this, [
this] {
triggerRepaint(
true ); } );
256 delete mDataProvider;
259 delete mExpressionFieldBuffer;
261 delete mDiagramLayerSettings;
262 delete mDiagramRenderer;
267 delete mConditionalStyles;
268 delete mStoredExpressionManager;
270 if ( mFeatureCounter )
271 mFeatureCounter->
cancel();
273 qDeleteAll( mRendererGenerators );
294 options.forceReadOnly = mDataSourceReadOnly;
301 layer->mXmlExtent2D = mXmlExtent2D;
302 layer->mLazyExtent2D = mLazyExtent2D;
303 layer->mValidExtent2D = mValidExtent2D;
304 layer->mXmlExtent3D = mXmlExtent3D;
305 layer->mLazyExtent3D = mLazyExtent3D;
306 layer->mValidExtent3D = mValidExtent3D;
308 QList<QgsVectorLayerJoinInfo> joins =
vectorJoins();
309 const auto constJoins = joins;
331 for (
const QgsAction &action : constActions )
368 auto constraintIt = constraints.constBegin();
369 for ( ; constraintIt != constraints.constEnd(); ++ constraintIt )
385 layer->mElevationProperties = mElevationProperties->
clone();
386 layer->mElevationProperties->setParent( layer );
388 layer->mSelectionProperties = mSelectionProperties->
clone();
389 layer->mSelectionProperties->setParent( layer );
421 return mDataProvider && mDataProvider->
isSqlQuery();
482 p.setPen( QColor( 50, 100, 120, 200 ) );
483 p.setBrush( QColor( 200, 200, 210, 120 ) );
484 p.drawEllipse( x - m, y - m, m * 2 + 1, m * 2 + 1 );
488 p.setPen( QColor( 255, 0, 0 ) );
489 p.drawLine( x - m, y + m, x + m, y - m );
490 p.drawLine( x - m, y - m, x + m, y + m );
502 mSelectedFeatureIds.insert( fid );
503 mPreviousSelectedFeatureIds.clear();
512 mSelectedFeatureIds.unite( featureIds );
513 mPreviousSelectedFeatureIds.clear();
522 mSelectedFeatureIds.remove( fid );
523 mPreviousSelectedFeatureIds.clear();
532 mSelectedFeatureIds.subtract( featureIds );
533 mPreviousSelectedFeatureIds.clear();
548 .setFilterRect( rect )
550 .setNoAttributes() );
555 newSelection << feat.
id();
568 std::optional< QgsExpressionContext > defaultContext;
572 context = &defaultContext.value();
591 newSelection << feat.
id();
613 bool matches = exp.
evaluate( context ).toBool();
617 newSelection << feat.
id();
621 newSelection << feat.
id();
642 newSelection = mSelectedFeatureIds + ids;
646 newSelection = mSelectedFeatureIds - ids;
650 newSelection = mSelectedFeatureIds.intersect( ids );
654 QgsFeatureIds deselectedFeatures = mSelectedFeatureIds - newSelection;
655 mSelectedFeatureIds = newSelection;
656 mPreviousSelectedFeatureIds.clear();
666 if ( !intersectingIds.isEmpty() )
668 QgsDebugMsgLevel( QStringLiteral(
"Trying to select and deselect the same item at the same time. Unsure what to do. Selecting dubious items." ), 3 );
671 mSelectedFeatureIds -= deselectIds;
672 mSelectedFeatureIds += selectIds;
673 mPreviousSelectedFeatureIds.clear();
683 ids.subtract( mSelectedFeatureIds );
702 .setFilterRect( rect )
704 .setNoAttributes() );
712 if ( mSelectedFeatureIds.contains( fet.
id() ) )
714 deselectIds << fet.
id();
718 selectIds << fet.
id();
729 if ( mSelectedFeatureIds.isEmpty() )
734 mPreviousSelectedFeatureIds = previous;
741 if ( mPreviousSelectedFeatureIds.isEmpty() || !mSelectedFeatureIds.empty() )
752 return mDataProvider;
760 return mDataProvider;
768 return mSelectionProperties;
775 return mTemporalProperties;
782 return mElevationProperties;
798 if (
isValid() && mDataProvider && mDataProvider->
encoding() != encoding )
809 delete mDiagramRenderer;
810 mDiagramRenderer = r;
834 if ( !
isValid() || !
isSpatial() || mSelectedFeatureIds.isEmpty() || !mDataProvider )
846 .setFilterFids( mSelectedFeatureIds )
847 .setNoAttributes() );
860 .setNoAttributes() );
864 if ( mSelectedFeatureIds.contains( fet.
id() ) )
875 if ( retval.
width() == 0.0 || retval.
height() == 0.0 )
884 retval.
set( -1.0, -1.0, 1.0, 1.0 );
896 return mLabelsEnabled &&
static_cast< bool >( mLabeling );
903 mLabelsEnabled = enabled;
911 if ( !mDiagramRenderer || !mDiagramLayerSettings )
914 QList<QgsDiagramSettings> settingList = mDiagramRenderer->
diagramSettings();
915 if ( !settingList.isEmpty() )
917 return settingList.at( 0 ).enabled;
926 if ( !mSymbolFeatureCounted )
929 return mSymbolFeatureCountMap.value( legendKey, -1 );
936 if ( !mSymbolFeatureCounted )
939 return mSymbolFeatureIdMap.value( legendKey,
QgsFeatureIds() );
945 if ( ( mSymbolFeatureCounted || mFeatureCounter ) && !( storeSymbolFids && mSymbolFeatureIdMap.isEmpty() ) )
946 return mFeatureCounter;
948 mSymbolFeatureCountMap.clear();
949 mSymbolFeatureIdMap.clear();
954 return mFeatureCounter;
956 if ( !mDataProvider )
959 return mFeatureCounter;
964 return mFeatureCounter;
967 if ( !mFeatureCounter || ( storeSymbolFids && mSymbolFeatureIdMap.isEmpty() ) )
970 connect( mFeatureCounter, &
QgsTask::taskCompleted,
this, &QgsVectorLayer::onFeatureCounterCompleted, Qt::UniqueConnection );
971 connect( mFeatureCounter, &
QgsTask::taskTerminated,
this, &QgsVectorLayer::onFeatureCounterTerminated, Qt::UniqueConnection );
975 return mFeatureCounter;
983 if ( force || !mReadExtentFromXml || ( mReadExtentFromXml && mXmlExtent2D.
isNull() && mXmlExtent3D.
isNull() ) )
985 mValidExtent2D =
false;
986 mValidExtent3D =
false;
995 mValidExtent2D =
true;
1003 mValidExtent3D =
true;
1010 if ( !mDefaultValueOnUpdateFields.isEmpty() )
1015 int size = mFields.
size();
1016 for (
int idx : std::as_const( mDefaultValueOnUpdateFields ) )
1018 if ( idx < 0 || idx >= size )
1041 updateExtent( mDataProvider->
extent() );
1042 mValidExtent2D =
true;
1043 mLazyExtent2D =
false;
1047 if ( !mValidExtent2D && mLazyExtent2D && mReadExtentFromXml && !mXmlExtent2D.
isNull() )
1049 updateExtent( mXmlExtent2D );
1050 mValidExtent2D =
true;
1051 mLazyExtent2D =
false;
1054 if ( !mValidExtent2D && mLazyExtent2D && mDataProvider && mDataProvider->
isValid() )
1057 updateExtent( mDataProvider->
extent() );
1058 mValidExtent2D =
true;
1059 mLazyExtent2D =
false;
1062 QgsDebugMsgLevel( QStringLiteral(
"2D Extent of layer: %1" ).arg( mExtent2D.toString() ), 3 );
1066 if ( mValidExtent2D )
1069 if ( !
isValid() || !mDataProvider )
1071 QgsDebugMsgLevel( QStringLiteral(
"invoked with invalid layer or null mDataProvider" ), 3 );
1075 if ( !mEditBuffer ||
1089 if ( mEditBuffer && !mDataProvider->
transaction() )
1092 for ( QgsFeatureMap::const_iterator it = addedFeatures.constBegin(); it != addedFeatures.constEnd(); ++it )
1094 if ( it->hasGeometry() )
1105 .setNoAttributes() );
1118 if ( rect.xMinimum() > rect.xMaximum() && rect.yMinimum() > rect.yMaximum() )
1124 updateExtent( rect );
1125 mValidExtent2D =
true;
1154 updateExtent( mDataProvider->
extent3D() );
1155 mValidExtent3D =
true;
1156 mLazyExtent3D =
false;
1160 if ( !mValidExtent3D && mLazyExtent3D && mReadExtentFromXml && !mXmlExtent3D.
isNull() )
1162 updateExtent( mXmlExtent3D );
1163 mValidExtent3D =
true;
1164 mLazyExtent3D =
false;
1167 if ( !mValidExtent3D && mLazyExtent3D && mDataProvider && mDataProvider->
isValid() )
1170 updateExtent( mDataProvider->
extent3D() );
1171 mValidExtent3D =
true;
1172 mLazyExtent3D =
false;
1175 QgsDebugMsgLevel( QStringLiteral(
"3D Extent of layer: %1" ).arg( mExtent3D.toString() ), 3 );
1179 if ( mValidExtent3D )
1182 if ( !
isValid() || !mDataProvider )
1184 QgsDebugMsgLevel( QStringLiteral(
"invoked with invalid layer or null mDataProvider" ), 3 );
1188 if ( !mEditBuffer ||
1199 extent.combineWith( ext );
1202 if ( mEditBuffer && !mDataProvider->
transaction() )
1205 for ( QgsFeatureMap::const_iterator it = addedFeatures.constBegin(); it != addedFeatures.constEnd(); ++it )
1207 if ( it->hasGeometry() )
1209 const QgsBox3D bbox = it->geometry().boundingBox3D();
1210 extent.combineWith( bbox );
1218 .setNoAttributes() );
1226 extent.combineWith( bb );
1238 mValidExtent3D =
true;
1264 if ( !
isValid() || !mDataProvider )
1266 QgsDebugMsgLevel( QStringLiteral(
"invoked with invalid layer or null mDataProvider" ), 3 );
1267 return customProperty( QStringLiteral(
"storedSubsetString" ) ).toString();
1276 if ( !
isValid() || !mDataProvider )
1278 QgsDebugMsgLevel( QStringLiteral(
"invoked with invalid layer or null mDataProvider or while editing" ), 3 );
1282 else if ( mEditBuffer )
1314 double maximumSimplificationScale = mSimplifyMethod.
maximumScale();
1317 return !( maximumSimplificationScale > 1 && renderContext.
rendererScale() <= maximumSimplificationScale );
1326 return mConditionalStyles;
1334 if ( !
isValid() || !mDataProvider )
1346 if ( feature.isValid() )
1347 return feature.geometry();
1356 if ( !
isValid() || !mEditBuffer || !mDataProvider )
1360 if ( mGeometryOptions->isActive() )
1363 mGeometryOptions->apply( geom );
1367 bool success = mEditBuffer->
addFeature( feature );
1374 success = mJoinBuffer->
addFeature( feature );
1384 if ( !mEditBuffer || !mDataProvider )
1390 if ( currentFeature.
isValid() )
1392 bool hasChanged =
false;
1393 bool hasError =
false;
1405 QgsDebugMsgLevel( QStringLiteral(
"geometry of feature %1 could not be changed." ).arg( updatedFeature.
id() ), 3 );
1412 for (
int attr = 0; attr < fa.count(); ++attr )
1422 QgsDebugMsgLevel( QStringLiteral(
"attribute %1 of feature %2 could not be changed." ).arg( attr ).arg( updatedFeature.
id() ), 3 );
1427 if ( hasChanged && !mDefaultValueOnUpdateFields.isEmpty() && !skipDefaultValues )
1428 updateDefaultValues( updatedFeature.
id(), updatedFeature );
1434 QgsDebugMsgLevel( QStringLiteral(
"feature %1 could not be retrieved" ).arg( updatedFeature.
id() ), 3 );
1444 if ( !
isValid() || !mEditBuffer || !mDataProvider )
1448 bool result = utils.
insertVertex( x, y, atFeatureId, beforeVertex );
1459 if ( !
isValid() || !mEditBuffer || !mDataProvider )
1463 bool result = utils.
insertVertex( point, atFeatureId, beforeVertex );
1474 if ( !
isValid() || !mEditBuffer || !mDataProvider )
1478 bool result = utils.
moveVertex( x, y, atFeatureId, atVertex );
1489 if ( !
isValid() || !mEditBuffer || !mDataProvider )
1493 bool result = utils.
moveVertex( p, atFeatureId, atVertex );
1504 if ( !
isValid() || !mEditBuffer || !mDataProvider )
1531 int count = mSelectedFeatureIds.size();
1544 *deletedCount = deleted;
1547 return deleted == count;
1550static const QgsPointSequence vectorPointXY2pointSequence(
const QVector<QgsPointXY> &points )
1553 pts.reserve( points.size() );
1554 QVector<QgsPointXY>::const_iterator it = points.constBegin();
1555 while ( it != points.constEnd() )
1566 return addRing( vectorPointXY2pointSequence( ring ), featureId );
1573 if ( !
isValid() || !mEditBuffer || !mDataProvider )
1580 if ( !mSelectedFeatureIds.isEmpty() )
1582 result = utils.
addRing( ring, mSelectedFeatureIds, featureId );
1598 if ( !
isValid() || !mEditBuffer || !mDataProvider )
1619 if ( !mSelectedFeatureIds.isEmpty() )
1621 result = utils.
addRing(
static_cast< QgsCurve *
>( ring->
clone() ), mSelectedFeatureIds, featureId );
1639 pts.reserve( points.size() );
1640 for ( QList<QgsPointXY>::const_iterator it = points.constBegin(); it != points.constEnd() ; ++it )
1647#if QT_VERSION < QT_VERSION_CHECK(6, 0, 0)
1652 return addPart( vectorPointXY2pointSequence( points ) );
1660 if ( !
isValid() || !mEditBuffer || !mDataProvider )
1665 if ( mSelectedFeatureIds.empty() )
1670 else if ( mSelectedFeatureIds.size() > 1 )
1688 if ( !
isValid() || !mEditBuffer || !mDataProvider )
1693 if ( mSelectedFeatureIds.empty() )
1698 else if ( mSelectedFeatureIds.size() > 1 )
1717 if ( !
isValid() || !mEditBuffer || !mDataProvider )
1732 return splitParts( vectorPointXY2pointSequence( splitLine ), topologicalEditing );
1739 if ( !
isValid() || !mEditBuffer || !mDataProvider )
1743 return utils.
splitParts( splitLine, topologicalEditing );
1750 return splitFeatures( vectorPointXY2pointSequence( splitLine ), topologicalEditing );
1759 bool preserveCircular =
false;
1760 return splitFeatures( &splitLineString, topologyTestPoints, preserveCircular, topologicalEditing );
1767 if ( !
isValid() || !mEditBuffer || !mDataProvider )
1771 return utils.
splitFeatures( curve, topologyTestPoints, preserveCircular, topologicalEditing );
1778 if ( !
isValid() || !mEditBuffer || !mDataProvider )
1796 if ( !
isValid() || !mEditBuffer || !mDataProvider )
1807 if ( !
mValid || !mEditBuffer || !mDataProvider )
1832 if ( !
isValid() || !mDataProvider )
1866 if ( mDataProvider )
1882 if ( !mRenderer->
accept( visitor ) )
1886 if ( !mLabeling->
accept( visitor ) )
1899 QDomNode pkeyNode = layer_node.namedItem( QStringLiteral(
"provider" ) );
1901 if ( pkeyNode.isNull() )
1907 QDomElement pkeyElt = pkeyNode.toElement();
1917 else if (
mDataSource.contains( QLatin1String(
"dbname=" ) ) )
1926 const QDomElement elem = layer_node.toElement();
1940 if ( elem.hasAttribute( QStringLiteral(
"wkbType" ) ) )
1941 mWkbType =
qgsEnumKeyToValue( elem.attribute( QStringLiteral(
"wkbType" ) ), mWkbType );
1944 QDomElement pkeyElem = pkeyNode.toElement();
1945 if ( !pkeyElem.isNull() )
1947 QString encodingString = pkeyElem.attribute( QStringLiteral(
"encoding" ) );
1948 if ( mDataProvider && !encodingString.isEmpty() )
1955 mJoinBuffer->
readXml( layer_node );
1960 mSetLegendFromStyle =
false;
1970 QDomNode depsNode = layer_node.namedItem( QStringLiteral(
"dataDependencies" ) );
1971 QDomNodeList depsNodes = depsNode.childNodes();
1972 QSet<QgsMapLayerDependency> sources;
1973 for (
int i = 0; i < depsNodes.count(); i++ )
1975 QString
source = depsNodes.at( i ).toElement().attribute( QStringLiteral(
"id" ) );
1980 if ( !mSetLegendFromStyle )
1986 mReadExtentFromXml =
true;
1988 if ( mReadExtentFromXml )
1990 const QDomNode extentNode = layer_node.namedItem( QStringLiteral(
"extent" ) );
1991 if ( !extentNode.isNull() )
1995 const QDomNode extent3DNode = layer_node.namedItem( QStringLiteral(
"extent3D" ) );
1996 if ( !extent3DNode.isNull() )
2003 const QDomNode asNode = layer_node.namedItem( QStringLiteral(
"auxiliaryLayer" ) );
2004 const QDomElement asElem = asNode.toElement();
2005 if ( !asElem.isNull() )
2007 mAuxiliaryLayerKey = asElem.attribute( QStringLiteral(
"key" ) );
2011 mServerProperties->readXml( layer_node );
2018void QgsVectorLayer::setDataSourcePrivate(
const QString &dataSource,
const QString &baseName,
const QString &provider,
2027 setDataProvider( provider, options,
flags );
2037 bool loadDefaultStyleFlag =
false;
2040 loadDefaultStyleFlag =
true;
2046 std::unique_ptr< QgsScopedRuntimeProfile > profile;
2048 profile = std::make_unique< QgsScopedRuntimeProfile >( tr(
"Load layer style" ), QStringLiteral(
"projectload" ) );
2050 bool defaultLoadedFlag =
false;
2058 mSetLegendFromStyle =
false;
2063 if ( !defaultLoadedFlag && loadDefaultStyleFlag )
2071 std::unique_ptr< QgsFeatureRenderer > defaultRenderer( mDataProvider->
createRenderer() );
2072 if ( defaultRenderer )
2074 defaultLoadedFlag =
true;
2080 if ( !defaultLoadedFlag )
2086 if ( !mSetLegendFromStyle )
2091 std::unique_ptr< QgsAbstractVectorLayerLabeling > defaultLabeling( mDataProvider->
createLabeling() );
2092 if ( defaultLabeling )
2099 styleChangedSignalBlocker.release();
2116 QStringList ids, names, descriptions;
2117 QString errorMessage;
2119 const int relatedStylesCount {
listStylesInDatabase( ids, names, descriptions, errorMessage ) };
2120 Q_ASSERT( ids.count() == names.count() );
2121 const QString currentStyleName { mStyleManager->currentStyle() };
2122 for (
int i = 0; i < relatedStylesCount; ++i )
2124 if ( names.at( i ) == currentStyleName )
2128 errorMessage.clear();
2130 if ( ! styleXml.isEmpty() && errorMessage.isEmpty() )
2136 QgsDebugMsgLevel( QStringLiteral(
"Error retrieving style %1 from DB: %2" ).arg( ids.at( i ), errorMessage ), 2 );
2146 std::unique_ptr< QgsFeatureRenderer > defaultRenderer( mDataProvider->
createRenderer() );
2147 if ( defaultRenderer )
2163 delete mDataProvider;
2170 if ( provider.compare( QLatin1String(
"postgres" ) ) == 0 )
2172 const QString checkUnicityKey { QStringLiteral(
"checkPrimaryKeyUnicity" ) };
2174 if ( ! uri.hasParam( checkUnicityKey ) )
2176 uri.setParam( checkUnicityKey, mReadExtentFromXml ?
"0" :
"1" );
2181 std::unique_ptr< QgsScopedRuntimeProfile > profile;
2183 profile = std::make_unique< QgsScopedRuntimeProfile >( tr(
"Create %1 provider" ).arg( provider ), QStringLiteral(
"projectload" ) );
2186 mDataProvider = qobject_cast< QgsVectorDataProvider * >(
mPreloadedProvider.release() );
2190 if ( !mDataProvider )
2197 mDataProvider->setParent(
this );
2200 QgsDebugMsgLevel( QStringLiteral(
"Instantiated the data provider plugin" ), 2 );
2210 profile->switchTask( tr(
"Read layer metadata" ) );
2217 newMetadata.
combine( &mMetadata );
2220 QgsDebugMsgLevel( QStringLiteral(
"Set Data provider QgsLayerMetadata identifier[%1]" ).arg(
metadata().identifier() ), 4 );
2227 mWkbType = mDataProvider->
wkbType();
2232 for (
const QgsField &field : providerFields )
2235 if ( !field.editorWidgetSetup().isNull() && mFieldWidgetSetups.value( field.name() ).isNull() )
2237 mFieldWidgetSetups[ field.name() ] = field.editorWidgetSetup();
2239 if ( !field.alias().isEmpty() && mAttributeAliasMap.value( field.name() ).isEmpty() )
2241 mAttributeAliasMap[ field.name() ] = field.alias();
2243 if ( !mAttributeSplitPolicy.contains( field.name() ) )
2245 mAttributeSplitPolicy[ field.name() ] = field.splitPolicy();
2247 if ( !mAttributeDuplicatePolicy.contains( field.name() ) )
2249 mAttributeDuplicatePolicy[ field.name() ] = field.duplicatePolicy();
2254 profile->switchTask( tr(
"Read layer fields" ) );
2265 const thread_local QRegularExpression reg( R
"lit("[^"]+"\."([^"] + )"( \([^)]+\))?)lit" );
2266 const QRegularExpressionMatch match = reg.match(
name() );
2267 if ( match.hasMatch() )
2269 QStringList stuff = match.capturedTexts();
2270 QString lName = stuff[1];
2274 QMap<QString, QgsMapLayer *>::const_iterator it;
2275 for ( it = layers.constBegin(); it != layers.constEnd() && ( *it )->name() != lName; ++it )
2278 if ( it != layers.constEnd() && stuff.size() > 2 )
2280 lName +=
'.' + stuff[2].mid( 2, stuff[2].length() - 3 );
2283 if ( !lName.isEmpty() )
2293 else if ( provider == QLatin1String(
"ogr" ) )
2297 if (
mDataSource.right( 10 ) == QLatin1String(
"|layerid=0" ) )
2300 else if ( provider == QLatin1String(
"memory" ) )
2305 else if ( provider == QLatin1String(
"hana" ) )
2322 QDomDocument &document,
2329 QDomElement mapLayerNode = layer_node.toElement();
2331 if ( mapLayerNode.isNull() || (
"maplayer" != mapLayerNode.nodeName() ) )
2344 if ( mDataProvider )
2346 QDomElement provider = document.createElement( QStringLiteral(
"provider" ) );
2347 provider.setAttribute( QStringLiteral(
"encoding" ), mDataProvider->
encoding() );
2348 QDomText providerText = document.createTextNode(
providerType() );
2349 provider.appendChild( providerText );
2350 layer_node.appendChild( provider );
2354 mJoinBuffer->
writeXml( layer_node, document );
2357 QDomElement dependenciesElement = document.createElement( QStringLiteral(
"layerDependencies" ) );
2363 QDomElement depElem = document.createElement( QStringLiteral(
"layer" ) );
2364 depElem.setAttribute( QStringLiteral(
"id" ), dep.layerId() );
2365 dependenciesElement.appendChild( depElem );
2367 layer_node.appendChild( dependenciesElement );
2370 QDomElement dataDependenciesElement = document.createElement( QStringLiteral(
"dataDependencies" ) );
2375 QDomElement depElem = document.createElement( QStringLiteral(
"layer" ) );
2376 depElem.setAttribute( QStringLiteral(
"id" ), dep.layerId() );
2377 dataDependenciesElement.appendChild( depElem );
2379 layer_node.appendChild( dataDependenciesElement );
2382 mExpressionFieldBuffer->
writeXml( layer_node, document );
2387 QDomElement asElem = document.createElement( QStringLiteral(
"auxiliaryLayer" ) );
2388 if ( mAuxiliaryLayer )
2390 const QString pkField = mAuxiliaryLayer->joinInfo().targetFieldName();
2391 asElem.setAttribute( QStringLiteral(
"key" ), pkField );
2393 layer_node.appendChild( asElem );
2396 mServerProperties->writeXml( layer_node, document );
2400 return writeSymbology( layer_node, document, errorMsg, context );
2439 if ( categories.testFlag(
Fields ) )
2441 if ( !mExpressionFieldBuffer )
2443 mExpressionFieldBuffer->
readXml( layerNode );
2453 QDomNodeList referencedLayersNodeList = layerNode.toElement().elementsByTagName( QStringLiteral(
"referencedLayers" ) );
2454 if ( referencedLayersNodeList.size() > 0 )
2456 const QDomNodeList relationNodes { referencedLayersNodeList.at( 0 ).childNodes() };
2457 for (
int i = 0; i < relationNodes.length(); ++i )
2459 const QDomElement relationElement = relationNodes.at( i ).toElement();
2466 QDomNodeList referencingLayersNodeList = layerNode.toElement().elementsByTagName( QStringLiteral(
"referencingLayers" ) );
2467 if ( referencingLayersNodeList.size() > 0 )
2469 const QDomNodeList relationNodes { referencingLayersNodeList.at( 0 ).childNodes() };
2470 for (
int i = 0; i < relationNodes.length(); ++i )
2472 const QDomElement relationElement = relationNodes.at( i ).toElement();
2478 QDomElement layerElement = layerNode.toElement();
2482 readStyle( layerNode, errorMessage, context, categories );
2484 if ( categories.testFlag(
MapTips ) )
2486 QDomElement mapTipElem = layerNode.namedItem( QStringLiteral(
"mapTip" ) ).toElement();
2488 setMapTipsEnabled( mapTipElem.attribute( QStringLiteral(
"enabled" ), QStringLiteral(
"1" ) ).toInt() == 1 );
2492 mDisplayExpression = layerNode.namedItem( QStringLiteral(
"previewExpression" ) ).toElement().text();
2495 QString
displayField = layerNode.namedItem( QStringLiteral(
"displayfield" ) ).toElement().text();
2499 if ( mMapTipTemplate.isEmpty() && categories.testFlag(
MapTips ) )
2509 if ( categories.testFlag(
Actions ) )
2510 mActions->
readXml( layerNode );
2512 if ( categories.testFlag(
Fields ) )
2517 QDomNode aliasesNode = layerNode.namedItem( QStringLiteral(
"aliases" ) );
2518 if ( !aliasesNode.isNull() )
2520 QDomElement aliasElem;
2522 QDomNodeList aliasNodeList = aliasesNode.toElement().elementsByTagName( QStringLiteral(
"alias" ) );
2523 for (
int i = 0; i < aliasNodeList.size(); ++i )
2525 aliasElem = aliasNodeList.at( i ).toElement();
2528 if ( aliasElem.hasAttribute( QStringLiteral(
"field" ) ) )
2530 field = aliasElem.attribute( QStringLiteral(
"field" ) );
2534 int index = aliasElem.attribute( QStringLiteral(
"index" ) ).toInt();
2536 if ( index >= 0 && index <
fields().count() )
2542 if ( !aliasElem.attribute( QStringLiteral(
"name" ) ).isEmpty() )
2545 alias = context.
projectTranslator()->
translate( QStringLiteral(
"project:layers:%1:fieldaliases" ).arg( layerNode.namedItem( QStringLiteral(
"id" ) ).toElement().text() ), aliasElem.attribute( QStringLiteral(
"name" ) ) );
2546 QgsDebugMsgLevel(
"context" + QStringLiteral(
"project:layers:%1:fieldaliases" ).arg( layerNode.namedItem( QStringLiteral(
"id" ) ).toElement().text() ) +
" source " + aliasElem.attribute( QStringLiteral(
"name" ) ), 3 );
2551 alias = context.
projectTranslator()->
translate( QStringLiteral(
"project:layers:%1:fieldaliases" ).arg( layerNode.namedItem( QStringLiteral(
"id" ) ).toElement().text() ), field );
2552 QgsDebugMsgLevel(
"context" + QStringLiteral(
"project:layers:%1:fieldaliases" ).arg( layerNode.namedItem( QStringLiteral(
"id" ) ).toElement().text() ) +
" source " + field, 3 );
2554 if ( alias == aliasElem.attribute( QStringLiteral(
"field" ) ) )
2558 QgsDebugMsgLevel(
"field " + field +
" origalias " + aliasElem.attribute( QStringLiteral(
"name" ) ) +
" trans " + alias, 3 );
2559 mAttributeAliasMap.insert( field, alias );
2566 const QDomNode splitPoliciesNode = layerNode.namedItem( QStringLiteral(
"splitPolicies" ) );
2567 if ( !splitPoliciesNode.isNull() )
2569 const QDomNodeList splitPolicyNodeList = splitPoliciesNode.toElement().elementsByTagName( QStringLiteral(
"policy" ) );
2570 for (
int i = 0; i < splitPolicyNodeList.size(); ++i )
2572 const QDomElement splitPolicyElem = splitPolicyNodeList.at( i ).toElement();
2573 const QString field = splitPolicyElem.attribute( QStringLiteral(
"field" ) );
2575 mAttributeSplitPolicy.insert( field, policy );
2580 mAttributeDuplicatePolicy.clear();
2581 const QDomNode duplicatePoliciesNode = layerNode.namedItem( QStringLiteral(
"duplicatePolicies" ) );
2582 if ( !duplicatePoliciesNode.isNull() )
2584 const QDomNodeList duplicatePolicyNodeList = duplicatePoliciesNode.toElement().elementsByTagName( QStringLiteral(
"policy" ) );
2585 for (
int i = 0; i < duplicatePolicyNodeList.size(); ++i )
2587 const QDomElement duplicatePolicyElem = duplicatePolicyNodeList.at( i ).toElement();
2588 const QString field = duplicatePolicyElem.attribute( QStringLiteral(
"field" ) );
2590 mAttributeDuplicatePolicy.insert( field, policy );
2595 mDefaultExpressionMap.clear();
2596 QDomNode defaultsNode = layerNode.namedItem( QStringLiteral(
"defaults" ) );
2597 if ( !defaultsNode.isNull() )
2599 QDomNodeList defaultNodeList = defaultsNode.toElement().elementsByTagName( QStringLiteral(
"default" ) );
2600 for (
int i = 0; i < defaultNodeList.size(); ++i )
2602 QDomElement defaultElem = defaultNodeList.at( i ).toElement();
2604 QString field = defaultElem.attribute( QStringLiteral(
"field" ), QString() );
2605 QString expression = defaultElem.attribute( QStringLiteral(
"expression" ), QString() );
2606 bool applyOnUpdate = defaultElem.attribute( QStringLiteral(
"applyOnUpdate" ), QStringLiteral(
"0" ) ) == QLatin1String(
"1" );
2607 if ( field.isEmpty() || expression.isEmpty() )
2610 mDefaultExpressionMap.insert( field,
QgsDefaultValue( expression, applyOnUpdate ) );
2615 mFieldConstraints.clear();
2616 mFieldConstraintStrength.clear();
2617 QDomNode constraintsNode = layerNode.namedItem( QStringLiteral(
"constraints" ) );
2618 if ( !constraintsNode.isNull() )
2620 QDomNodeList constraintNodeList = constraintsNode.toElement().elementsByTagName( QStringLiteral(
"constraint" ) );
2621 for (
int i = 0; i < constraintNodeList.size(); ++i )
2623 QDomElement constraintElem = constraintNodeList.at( i ).toElement();
2625 QString field = constraintElem.attribute( QStringLiteral(
"field" ), QString() );
2626 int constraints = constraintElem.attribute( QStringLiteral(
"constraints" ), QStringLiteral(
"0" ) ).toInt();
2627 if ( field.isEmpty() || constraints == 0 )
2632 int uniqueStrength = constraintElem.attribute( QStringLiteral(
"unique_strength" ), QStringLiteral(
"1" ) ).toInt();
2633 int notNullStrength = constraintElem.attribute( QStringLiteral(
"notnull_strength" ), QStringLiteral(
"1" ) ).toInt();
2634 int expStrength = constraintElem.attribute( QStringLiteral(
"exp_strength" ), QStringLiteral(
"1" ) ).toInt();
2641 mFieldConstraintExpressions.clear();
2642 QDomNode constraintExpressionsNode = layerNode.namedItem( QStringLiteral(
"constraintExpressions" ) );
2643 if ( !constraintExpressionsNode.isNull() )
2645 QDomNodeList constraintNodeList = constraintExpressionsNode.toElement().elementsByTagName( QStringLiteral(
"constraint" ) );
2646 for (
int i = 0; i < constraintNodeList.size(); ++i )
2648 QDomElement constraintElem = constraintNodeList.at( i ).toElement();
2650 QString field = constraintElem.attribute( QStringLiteral(
"field" ), QString() );
2651 QString exp = constraintElem.attribute( QStringLiteral(
"exp" ), QString() );
2652 QString desc = constraintElem.attribute( QStringLiteral(
"desc" ), QString() );
2653 if ( field.isEmpty() || exp.isEmpty() )
2656 mFieldConstraintExpressions.insert( field, qMakePair( exp, desc ) );
2664 if ( categories.testFlag(
Fields ) || categories.testFlag(
Forms ) )
2668 QDomElement widgetsElem = layerNode.namedItem( QStringLiteral(
"fieldConfiguration" ) ).toElement();
2669 QDomNodeList fieldConfigurationElementList = widgetsElem.elementsByTagName( QStringLiteral(
"field" ) );
2670 for (
int i = 0; i < fieldConfigurationElementList.size(); ++i )
2672 const QDomElement fieldConfigElement = fieldConfigurationElementList.at( i ).toElement();
2673 const QDomElement fieldWidgetElement = fieldConfigElement.elementsByTagName( QStringLiteral(
"editWidget" ) ).at( 0 ).toElement();
2675 QString fieldName = fieldConfigElement.attribute( QStringLiteral(
"name" ) );
2677 if ( categories.testFlag(
Fields ) )
2681 if ( categories.testFlag(
Forms ) )
2683 const QString widgetType = fieldWidgetElement.attribute( QStringLiteral(
"type" ) );
2684 const QDomElement cfgElem = fieldConfigElement.elementsByTagName( QStringLiteral(
"config" ) ).at( 0 ).toElement();
2685 const QDomElement optionsElem = cfgElem.childNodes().at( 0 ).toElement();
2687 if ( widgetType == QLatin1String(
"ValueRelation" ) )
2689 optionsMap[ QStringLiteral(
"Value" ) ] = context.
projectTranslator()->
translate( QStringLiteral(
"project:layers:%1:fields:%2:valuerelationvalue" ).arg( layerNode.namedItem( QStringLiteral(
"id" ) ).toElement().text(), fieldName ), optionsMap[ QStringLiteral(
"Value" ) ].toString() );
2692 mFieldWidgetSetups[fieldName] = setup;
2699 if ( categories.testFlag(
Fields ) )
2701 const QList<QPair<QString, Qgis::FieldConfigurationFlag>> legacyConfig
2706 for (
const auto &config : legacyConfig )
2708 QDomNode excludeNode = layerNode.namedItem( config.first );
2709 if ( !excludeNode.isNull() )
2711 QDomNodeList attributeNodeList = excludeNode.toElement().elementsByTagName( QStringLiteral(
"attribute" ) );
2712 for (
int i = 0; i < attributeNodeList.size(); ++i )
2714 QString fieldName = attributeNodeList.at( i ).toElement().text();
2715 if ( !mFieldConfigurationFlags.contains( fieldName ) )
2716 mFieldConfigurationFlags[fieldName] = config.second;
2718 mFieldConfigurationFlags[fieldName].setFlag( config.second,
true );
2725 mGeometryOptions->readXml( layerNode.namedItem( QStringLiteral(
"geometryOptions" ) ) );
2727 if ( categories.testFlag(
Forms ) )
2728 mEditFormConfig.
readXml( layerNode, context );
2732 mAttributeTableConfig.
readXml( layerNode );
2733 mConditionalStyles->
readXml( layerNode, context );
2734 mStoredExpressionManager->
readXml( layerNode );
2740 QDomElement mapLayerNode = layerNode.toElement();
2742 && mapLayerNode.attribute( QStringLiteral(
"readOnly" ), QStringLiteral(
"0" ) ).toInt() == 1 )
2747 if ( categories.testFlag(
Legend ) )
2751 const QDomElement legendElem = layerNode.firstChildElement( QStringLiteral(
"legend" ) );
2752 if ( !legendElem.isNull() )
2757 mSetLegendFromStyle =
true;
2787 if ( !rendererElement.isNull() )
2805 if ( mSelectionProperties )
2806 mSelectionProperties->
readXml( node.toElement(), context );
2810 if ( categories.testFlag(
Labeling ) )
2814 QDomElement labelingElement = node.firstChildElement( QStringLiteral(
"labeling" ) );
2816 if ( labelingElement.isNull() ||
2817 ( labelingElement.attribute( QStringLiteral(
"type" ) ) == QLatin1String(
"simple" ) && labelingElement.firstChildElement( QStringLiteral(
"settings" ) ).isNull() ) )
2825 labeling = readLabelingFromCustomProperties();
2833 if ( node.toElement().hasAttribute( QStringLiteral(
"labelsEnabled" ) ) )
2834 mLabelsEnabled = node.toElement().attribute( QStringLiteral(
"labelsEnabled" ) ).toInt();
2836 mLabelsEnabled =
true;
2842 QDomNode blendModeNode = node.namedItem( QStringLiteral(
"blendMode" ) );
2843 if ( !blendModeNode.isNull() )
2845 QDomElement e = blendModeNode.toElement();
2850 QDomNode featureBlendModeNode = node.namedItem( QStringLiteral(
"featureBlendMode" ) );
2851 if ( !featureBlendModeNode.isNull() )
2853 QDomElement e = featureBlendModeNode.toElement();
2861 QDomNode layerTransparencyNode = node.namedItem( QStringLiteral(
"layerTransparency" ) );
2862 if ( !layerTransparencyNode.isNull() )
2864 QDomElement e = layerTransparencyNode.toElement();
2865 setOpacity( 1.0 - e.text().toInt() / 100.0 );
2867 QDomNode layerOpacityNode = node.namedItem( QStringLiteral(
"layerOpacity" ) );
2868 if ( !layerOpacityNode.isNull() )
2870 QDomElement e = layerOpacityNode.toElement();
2874 const bool hasScaleBasedVisibiliy { node.attributes().namedItem( QStringLiteral(
"hasScaleBasedVisibilityFlag" ) ).nodeValue() ==
'1' };
2877 const double maxScale { node.attributes().namedItem( QStringLiteral(
"maxScale" ) ).nodeValue().toDouble( &ok ) };
2882 const double minScale { node.attributes().namedItem( QStringLiteral(
"minScale" ) ).nodeValue().toDouble( &ok ) };
2888 QDomElement e = node.toElement();
2893 mSimplifyMethod.
setThreshold( e.attribute( QStringLiteral(
"simplifyDrawingTol" ), QStringLiteral(
"1" ) ).toFloat() );
2894 mSimplifyMethod.
setForceLocalOptimization( e.attribute( QStringLiteral(
"simplifyLocal" ), QStringLiteral(
"1" ) ).toInt() );
2895 mSimplifyMethod.
setMaximumScale( e.attribute( QStringLiteral(
"simplifyMaxScale" ), QStringLiteral(
"1" ) ).toFloat() );
2898 mRenderer->
setReferenceScale( e.attribute( QStringLiteral(
"symbologyReferenceScale" ), QStringLiteral(
"-1" ) ).toDouble() );
2902 if ( categories.testFlag(
Diagrams ) )
2906 delete mDiagramRenderer;
2907 mDiagramRenderer =
nullptr;
2908 QDomElement singleCatDiagramElem = node.firstChildElement( QStringLiteral(
"SingleCategoryDiagramRenderer" ) );
2909 if ( !singleCatDiagramElem.isNull() )
2912 mDiagramRenderer->
readXml( singleCatDiagramElem, context );
2914 QDomElement linearDiagramElem = node.firstChildElement( QStringLiteral(
"LinearlyInterpolatedDiagramRenderer" ) );
2915 if ( !linearDiagramElem.isNull() )
2917 if ( linearDiagramElem.hasAttribute( QStringLiteral(
"classificationAttribute" ) ) )
2920 int idx = linearDiagramElem.attribute( QStringLiteral(
"classificationAttribute" ) ).toInt();
2921 if ( idx >= 0 && idx < mFields.
count() )
2922 linearDiagramElem.setAttribute( QStringLiteral(
"classificationField" ), mFields.
at( idx ).
name() );
2926 mDiagramRenderer->
readXml( linearDiagramElem, context );
2928 QDomElement stackedDiagramElem = node.firstChildElement( QStringLiteral(
"StackedDiagramRenderer" ) );
2929 if ( !stackedDiagramElem.isNull() )
2932 mDiagramRenderer->
readXml( stackedDiagramElem, context );
2935 if ( mDiagramRenderer )
2937 QDomElement diagramSettingsElem = node.firstChildElement( QStringLiteral(
"DiagramLayerSettings" ) );
2938 if ( !diagramSettingsElem.isNull() )
2940 bool oldXPos = diagramSettingsElem.hasAttribute( QStringLiteral(
"xPosColumn" ) );
2941 bool oldYPos = diagramSettingsElem.hasAttribute( QStringLiteral(
"yPosColumn" ) );
2942 bool oldShow = diagramSettingsElem.hasAttribute( QStringLiteral(
"showColumn" ) );
2943 if ( oldXPos || oldYPos || oldShow )
2949 int xPosColumn = diagramSettingsElem.attribute( QStringLiteral(
"xPosColumn" ) ).toInt();
2950 if ( xPosColumn >= 0 && xPosColumn < mFields.
count() )
2955 int yPosColumn = diagramSettingsElem.attribute( QStringLiteral(
"yPosColumn" ) ).toInt();
2956 if ( yPosColumn >= 0 && yPosColumn < mFields.
count() )
2961 int showColumn = diagramSettingsElem.attribute( QStringLiteral(
"showColumn" ) ).toInt();
2962 if ( showColumn >= 0 && showColumn < mFields.
count() )
2965 QDomElement propertiesElem = diagramSettingsElem.ownerDocument().createElement( QStringLiteral(
"properties" ) );
2972 ddp.
writeXml( propertiesElem, defs );
2973 diagramSettingsElem.appendChild( propertiesElem );
2976 delete mDiagramLayerSettings;
2978 mDiagramLayerSettings->
readXml( diagramSettingsElem );
2984 styleChangedSignalBlocker.release();
2996 QDomElement layerElement = node.toElement();
2999 ( void )
writeStyle( node, doc, errorMessage, context, categories );
3002 mGeometryOptions->writeXml( node );
3007 if ( !legendElement.isNull() )
3008 node.appendChild( legendElement );
3017 QDomElement referencedLayersElement = doc.createElement( QStringLiteral(
"referencedLayers" ) );
3018 node.appendChild( referencedLayersElement );
3020 const QList<QgsRelation>
referencingRelations { p->relationManager()->referencingRelations(
this ) };
3023 switch ( rel.type() )
3034 QDomElement referencingLayersElement = doc.createElement( QStringLiteral(
"referencingLayers" ) );
3035 node.appendChild( referencedLayersElement );
3037 const QList<QgsRelation> referencedRelations { p->relationManager()->referencedRelations(
this ) };
3038 for (
const QgsRelation &rel : referencedRelations )
3040 switch ( rel.type() )
3053 if ( categories.testFlag(
Fields ) || categories.testFlag(
Forms ) )
3055 QDomElement fieldConfigurationElement;
3057 fieldConfigurationElement = doc.createElement( QStringLiteral(
"fieldConfiguration" ) );
3058 node.appendChild( fieldConfigurationElement );
3060 for (
const QgsField &field : std::as_const( mFields ) )
3062 QDomElement fieldElement = doc.createElement( QStringLiteral(
"field" ) );
3063 fieldElement.setAttribute( QStringLiteral(
"name" ), field.name() );
3064 fieldConfigurationElement.appendChild( fieldElement );
3066 if ( categories.testFlag(
Fields ) )
3068 fieldElement.setAttribute( QStringLiteral(
"configurationFlags" ),
qgsFlagValueToKeys( field.configurationFlags() ) );
3071 if ( categories.testFlag(
Forms ) )
3076 QDomElement editWidgetElement = doc.createElement( QStringLiteral(
"editWidget" ) );
3077 fieldElement.appendChild( editWidgetElement );
3078 editWidgetElement.setAttribute( QStringLiteral(
"type" ), field.editorWidgetSetup().type() );
3079 QDomElement editWidgetConfigElement = doc.createElement( QStringLiteral(
"config" ) );
3082 editWidgetElement.appendChild( editWidgetConfigElement );
3088 if ( categories.testFlag(
Fields ) )
3091 QDomElement aliasElem = doc.createElement( QStringLiteral(
"aliases" ) );
3092 for (
const QgsField &field : std::as_const( mFields ) )
3094 QDomElement aliasEntryElem = doc.createElement( QStringLiteral(
"alias" ) );
3095 aliasEntryElem.setAttribute( QStringLiteral(
"field" ), field.name() );
3096 aliasEntryElem.setAttribute( QStringLiteral(
"index" ), mFields.
indexFromName( field.name() ) );
3097 aliasEntryElem.setAttribute( QStringLiteral(
"name" ), field.alias() );
3098 aliasElem.appendChild( aliasEntryElem );
3100 node.appendChild( aliasElem );
3104 QDomElement splitPoliciesElement = doc.createElement( QStringLiteral(
"splitPolicies" ) );
3105 for (
const QgsField &field : std::as_const( mFields ) )
3107 QDomElement splitPolicyElem = doc.createElement( QStringLiteral(
"policy" ) );
3108 splitPolicyElem.setAttribute( QStringLiteral(
"field" ), field.name() );
3109 splitPolicyElem.setAttribute( QStringLiteral(
"policy" ),
qgsEnumValueToKey( field.splitPolicy() ) );
3110 splitPoliciesElement.appendChild( splitPolicyElem );
3112 node.appendChild( splitPoliciesElement );
3117 QDomElement duplicatePoliciesElement = doc.createElement( QStringLiteral(
"duplicatePolicies" ) );
3118 for (
const QgsField &field : std::as_const( mFields ) )
3120 QDomElement duplicatePolicyElem = doc.createElement( QStringLiteral(
"policy" ) );
3121 duplicatePolicyElem.setAttribute( QStringLiteral(
"field" ), field.name() );
3122 duplicatePolicyElem.setAttribute( QStringLiteral(
"policy" ),
qgsEnumValueToKey( field.duplicatePolicy() ) );
3123 duplicatePoliciesElement.appendChild( duplicatePolicyElem );
3125 node.appendChild( duplicatePoliciesElement );
3129 QDomElement defaultsElem = doc.createElement( QStringLiteral(
"defaults" ) );
3130 for (
const QgsField &field : std::as_const( mFields ) )
3132 QDomElement defaultElem = doc.createElement( QStringLiteral(
"default" ) );
3133 defaultElem.setAttribute( QStringLiteral(
"field" ), field.name() );
3134 defaultElem.setAttribute( QStringLiteral(
"expression" ), field.defaultValueDefinition().expression() );
3135 defaultElem.setAttribute( QStringLiteral(
"applyOnUpdate" ), field.defaultValueDefinition().applyOnUpdate() ? QStringLiteral(
"1" ) : QStringLiteral(
"0" ) );
3136 defaultsElem.appendChild( defaultElem );
3138 node.appendChild( defaultsElem );
3141 QDomElement constraintsElem = doc.createElement( QStringLiteral(
"constraints" ) );
3142 for (
const QgsField &field : std::as_const( mFields ) )
3144 QDomElement constraintElem = doc.createElement( QStringLiteral(
"constraint" ) );
3145 constraintElem.setAttribute( QStringLiteral(
"field" ), field.name() );
3146 constraintElem.setAttribute( QStringLiteral(
"constraints" ), field.constraints().constraints() );
3151 constraintsElem.appendChild( constraintElem );
3153 node.appendChild( constraintsElem );
3156 QDomElement constraintExpressionsElem = doc.createElement( QStringLiteral(
"constraintExpressions" ) );
3157 for (
const QgsField &field : std::as_const( mFields ) )
3159 QDomElement constraintExpressionElem = doc.createElement( QStringLiteral(
"constraint" ) );
3160 constraintExpressionElem.setAttribute( QStringLiteral(
"field" ), field.name() );
3161 constraintExpressionElem.setAttribute( QStringLiteral(
"exp" ), field.constraints().constraintExpression() );
3162 constraintExpressionElem.setAttribute( QStringLiteral(
"desc" ), field.constraints().constraintDescription() );
3163 constraintExpressionsElem.appendChild( constraintExpressionElem );
3165 node.appendChild( constraintExpressionsElem );
3168 if ( !mExpressionFieldBuffer )
3176 mExpressionFieldBuffer->
writeXml( node, doc );
3181 if ( categories.testFlag(
Actions ) )
3186 mAttributeTableConfig.
writeXml( node );
3187 mConditionalStyles->
writeXml( node, doc, context );
3188 mStoredExpressionManager->
writeXml( node );
3191 if ( categories.testFlag(
Forms ) )
3192 mEditFormConfig.
writeXml( node, context );
3196 node.toElement().setAttribute( QStringLiteral(
"readOnly" ), mReadOnly );
3201 QDomElement prevExpElem = doc.createElement( QStringLiteral(
"previewExpression" ) );
3202 QDomText prevExpText = doc.createTextNode( mDisplayExpression );
3203 prevExpElem.appendChild( prevExpText );
3204 node.appendChild( prevExpElem );
3208 if ( categories.testFlag(
MapTips ) )
3210 QDomElement mapTipElem = doc.createElement( QStringLiteral(
"mapTip" ) );
3211 mapTipElem.setAttribute( QStringLiteral(
"enabled" ),
mapTipsEnabled() );
3212 QDomText mapTipText = doc.createTextNode( mMapTipTemplate );
3213 mapTipElem.appendChild( mapTipText );
3214 node.toElement().appendChild( mapTipElem );
3225 QDomElement mapLayerNode = node.toElement();
3238 QDomElement rendererElement = mRenderer->
save( doc, context );
3239 node.appendChild( rendererElement );
3241 if ( mSelectionProperties )
3243 mSelectionProperties->
writeXml( mapLayerNode, doc, context );
3247 if ( categories.testFlag(
Labeling ) )
3251 QDomElement labelingElement = mLabeling->
save( doc, context );
3252 node.appendChild( labelingElement );
3254 mapLayerNode.setAttribute( QStringLiteral(
"labelsEnabled" ), mLabelsEnabled ? QStringLiteral(
"1" ) : QStringLiteral(
"0" ) );
3260 mapLayerNode.setAttribute( QStringLiteral(
"simplifyDrawingHints" ), QString::number(
static_cast< int >( mSimplifyMethod.
simplifyHints() ) ) );
3261 mapLayerNode.setAttribute( QStringLiteral(
"simplifyAlgorithm" ), QString::number(
static_cast< int >( mSimplifyMethod.
simplifyAlgorithm() ) ) );
3262 mapLayerNode.setAttribute( QStringLiteral(
"simplifyDrawingTol" ), QString::number( mSimplifyMethod.
threshold() ) );
3263 mapLayerNode.setAttribute( QStringLiteral(
"simplifyLocal" ), mSimplifyMethod.
forceLocalOptimization() ? 1 : 0 );
3264 mapLayerNode.setAttribute( QStringLiteral(
"simplifyMaxScale" ), QString::number( mSimplifyMethod.
maximumScale() ) );
3276 QDomElement blendModeElem = doc.createElement( QStringLiteral(
"blendMode" ) );
3278 blendModeElem.appendChild( blendModeText );
3279 node.appendChild( blendModeElem );
3282 QDomElement featureBlendModeElem = doc.createElement( QStringLiteral(
"featureBlendMode" ) );
3284 featureBlendModeElem.appendChild( featureBlendModeText );
3285 node.appendChild( featureBlendModeElem );
3291 QDomElement layerOpacityElem = doc.createElement( QStringLiteral(
"layerOpacity" ) );
3292 QDomText layerOpacityText = doc.createTextNode( QString::number(
opacity() ) );
3293 layerOpacityElem.appendChild( layerOpacityText );
3294 node.appendChild( layerOpacityElem );
3295 mapLayerNode.setAttribute( QStringLiteral(
"hasScaleBasedVisibilityFlag" ),
hasScaleBasedVisibility() ? 1 : 0 );
3296 mapLayerNode.setAttribute( QStringLiteral(
"maxScale" ),
maximumScale() );
3297 mapLayerNode.setAttribute( QStringLiteral(
"minScale" ),
minimumScale() );
3299 mapLayerNode.setAttribute( QStringLiteral(
"symbologyReferenceScale" ), mRenderer ? mRenderer->
referenceScale() : -1 );
3302 if ( categories.testFlag(
Diagrams ) && mDiagramRenderer )
3304 mDiagramRenderer->
writeXml( mapLayerNode, doc, context );
3305 if ( mDiagramLayerSettings )
3306 mDiagramLayerSettings->
writeXml( mapLayerNode, doc );
3317 QDomElement nameElem = node.firstChildElement( QStringLiteral(
"Name" ) );
3318 if ( nameElem.isNull() )
3320 errorMessage = QStringLiteral(
"Warning: Name element not found within NamedLayer while it's required." );
3336 readSldLabeling( node );
3338 styleChangedSignalBlocker.release();
3348 Q_UNUSED( errorMessage )
3350 QVariantMap localProps = QVariantMap( props );
3359 QDomElement nameNode = doc.createElement( QStringLiteral(
"se:Name" ) );
3360 nameNode.appendChild( doc.createTextNode(
name() ) );
3361 node.appendChild( nameNode );
3363 QDomElement userStyleElem = doc.createElement( QStringLiteral(
"UserStyle" ) );
3364 node.appendChild( userStyleElem );
3366 QDomElement nameElem = doc.createElement( QStringLiteral(
"se:Name" ) );
3367 nameElem.appendChild( doc.createTextNode(
name() ) );
3369 userStyleElem.appendChild( nameElem );
3371 QDomElement featureTypeStyleElem = doc.createElement( QStringLiteral(
"se:FeatureTypeStyle" ) );
3372 userStyleElem.appendChild( featureTypeStyleElem );
3374 mRenderer->
toSld( doc, featureTypeStyleElem, localProps );
3377 mLabeling->
toSld( featureTypeStyleElem, localProps );
3388 if ( !mEditBuffer || !mDataProvider )
3393 if ( mGeometryOptions->isActive() )
3394 mGeometryOptions->apply( geom );
3403 if ( !skipDefaultValue && !mDefaultValueOnUpdateFields.isEmpty() )
3404 updateDefaultValues( fid );
3414 bool result =
false;
3416 switch (
fields().fieldOrigin( field ) )
3428 if ( mEditBuffer && mDataProvider )
3437 if ( result && !skipDefaultValues && !mDefaultValueOnUpdateFields.isEmpty() )
3455 for (
auto it = newValues.constBegin(); it != newValues.constEnd(); ++it )
3457 const int field = it.key();
3458 const QVariant newValue = it.value();
3461 if ( oldValues.contains( field ) )
3462 oldValue = oldValues[field];
3467 newValuesJoin[field] = newValue;
3468 oldValuesJoin[field] = oldValue;
3475 newValuesNotJoin[field] = newValue;
3476 oldValuesNotJoin[field] = oldValue;
3485 if ( ! newValuesJoin.isEmpty() && mJoinBuffer )
3490 if ( ! newValuesNotJoin.isEmpty() )
3492 if ( mEditBuffer && mDataProvider )
3498 if ( result && !skipDefaultValues && !mDefaultValueOnUpdateFields.isEmpty() )
3510 if ( !mEditBuffer || !mDataProvider )
3520 if ( attIndex < 0 || attIndex >=
fields().count() )
3524 mFields[ attIndex ].setAlias( QString() );
3525 if ( mAttributeAliasMap.contains(
name ) )
3527 mAttributeAliasMap.remove(
name );
3529 mEditFormConfig.setFields( mFields );
3538 if ( index < 0 || index >=
fields().count() )
3545 if ( mExpressionFieldBuffer )
3561 if ( !mEditBuffer || !mDataProvider )
3579 if ( attIndex < 0 || attIndex >=
fields().count() )
3584 mAttributeAliasMap.insert(
name, aliasString );
3585 mFields[ attIndex ].setAlias( aliasString );
3586 mEditFormConfig.setFields( mFields );
3594 if ( index < 0 || index >=
fields().count() )
3604 if ( index >= 0 && index < mFields.
count() )
3614 return mAttributeAliasMap;
3621 if ( index < 0 || index >=
fields().count() )
3626 mAttributeSplitPolicy.insert(
name, policy );
3627 mFields[ index ].setSplitPolicy( policy );
3628 mEditFormConfig.setFields( mFields );
3636 if ( index < 0 || index >=
fields().count() )
3641 mAttributeDuplicatePolicy.insert(
name, policy );
3642 mFields[ index ].setDuplicatePolicy( policy );
3643 mEditFormConfig.setFields( mFields );
3652 QSet<QString> excludeList;
3653 QMap< QString, Qgis::FieldConfigurationFlags >::const_iterator flagsIt = mFieldConfigurationFlags.constBegin();
3654 for ( ; flagsIt != mFieldConfigurationFlags.constEnd(); ++flagsIt )
3658 excludeList << flagsIt.key();
3668 QMap< QString, Qgis::FieldConfigurationFlags >::iterator flagsIt = mFieldConfigurationFlags.begin();
3669 for ( ; flagsIt != mFieldConfigurationFlags.end(); ++flagsIt )
3680 QSet<QString> excludeList;
3681 QMap< QString, Qgis::FieldConfigurationFlags >::const_iterator flagsIt = mFieldConfigurationFlags.constBegin();
3682 for ( ; flagsIt != mFieldConfigurationFlags.constEnd(); ++flagsIt )
3686 excludeList << flagsIt.key();
3696 QMap< QString, Qgis::FieldConfigurationFlags >::iterator flagsIt = mFieldConfigurationFlags.begin();
3697 for ( ; flagsIt != mFieldConfigurationFlags.end(); ++flagsIt )
3708 if ( index < 0 || index >=
fields().count() )
3717 if ( !mEditBuffer || !mDataProvider )
3727 bool deleted =
false;
3730 QList<int> attrList = qgis::setToList( qgis::listToSet( attrs ) );
3732 std::sort( attrList.begin(), attrList.end(), std::greater<int>() );
3734 for (
int attr : std::as_const( attrList ) )
3752 if ( context && context->
cascade )
3755 const bool hasRelationsOrJoins = !relations.empty() || mJoinBuffer->
containsJoins();
3756 if ( hasRelationsOrJoins )
3761 if ( handledFeatureIds.contains( fid ) )
3769 handledFeatureIds << fid;
3781 switch ( relation.strength() )
3789 while ( relatedFeaturesIt.
nextFeature( childFeature ) )
3791 childFeatureIds.insert( childFeature.
id() );
3793 if ( childFeatureIds.count() > 0 )
3795 relation.referencingLayer()->startEditing();
3796 relation.referencingLayer()->deleteFeatures( childFeatureIds, context );
3823 bool res = deleteFeatureCascade( fid, context );
3843 res = deleteFeatureCascade( fid, context ) && res;
3852 mSelectedFeatureIds.subtract( fids );
3872 if ( !mDataProvider )
3873 return pkAttributesList;
3876 for (
int i = 0; i < mFields.
count(); ++i )
3880 pkAttributesList << i;
3883 return pkAttributesList;
3890 if ( !mDataProvider )
3903 if ( mEditBuffer && !deletedFeatures.empty() )
3905 if ( addedFeatures.size() > deletedFeatures.size() )
3911 if ( ( !mEditBuffer || addedFeatures.empty() ) && mDataProvider && mDataProvider->
empty() )
3924 mCommitErrors.clear();
3926 if ( !mDataProvider )
3928 mCommitErrors << tr(
"ERROR: no provider" );
3934 mCommitErrors << tr(
"ERROR: layer not editable" );
3940 if ( !mAllowCommit )
3943 mCommitChangesActive =
true;
3945 bool success =
false;
3951 mCommitChangesActive =
false;
3953 if ( !mDeletedFids.empty() )
3956 mDeletedFids.clear();
4001 return mCommitErrors;
4016 if ( !mDataProvider )
4018 mCommitErrors << tr(
"ERROR: no provider" );
4044 mEditBuffer =
nullptr;
4049 if ( rollbackExtent )
4062 return mSelectedFeatureIds.size();
4070 return mSelectedFeatureIds;
4078 features.reserve( mSelectedFeatureIds.count() );
4085 features.push_back( f );
4095 if ( mSelectedFeatureIds.isEmpty() )
4101 if ( mSelectedFeatureIds.count() == 1 )
4102 request.
setFilterFid( *mSelectedFeatureIds.constBegin() );
4113 if ( !mEditBuffer || !mDataProvider )
4116 if ( mGeometryOptions->isActive() )
4118 for (
auto feature = features.begin(); feature != features.end(); ++feature )
4121 mGeometryOptions->apply( geom );
4148 if ( exp.isField() )
4171 if ( !mDisplayExpression.isEmpty() || mFields.
isEmpty() )
4173 return mDisplayExpression;
4178 if ( !candidateName.isEmpty() )
4201 return ( mEditBuffer && mDataProvider );
4213bool QgsVectorLayer::isReadOnly()
const
4217 return mDataSourceReadOnly || mReadOnly;
4225 if ( readonly && mEditBuffer )
4229 if ( !readonly && mDataSourceReadOnly )
4232 mReadOnly = readonly;
4241 if ( ! mDataProvider )
4244 if ( mDataSourceReadOnly )
4255 return mEditBuffer && mEditBuffer->
isModified();
4262 bool auxiliaryField =
false;
4266 return auxiliaryField;
4273 auxiliaryField =
true;
4276 return auxiliaryField;
4292 if ( r != mRenderer )
4296 mSymbolFeatureCounted =
false;
4297 mSymbolFeatureCountMap.clear();
4298 mSymbolFeatureIdMap.clear();
4303 if ( refreshRate <= 0 )
4305 mRefreshRendererTimer->stop();
4306 mRefreshRendererTimer->setInterval( 0 );
4310 mRefreshRendererTimer->setInterval( 1000 / refreshRate );
4311 mRefreshRendererTimer->start();
4326 mRendererGenerators << generator;
4334 for (
int i = mRendererGenerators.count() - 1; i >= 0; --i )
4336 if ( mRendererGenerators.at( i )->id() ==
id )
4338 delete mRendererGenerators.at( i );
4339 mRendererGenerators.removeAt( i );
4349 QList< const QgsFeatureRendererGenerator * > res;
4359 if ( !mDataProvider )
4365 QString ignoredError;
4369 mEditCommandActive =
true;
4377 if ( !mDataProvider )
4382 mEditCommandActive =
false;
4383 if ( !mDeletedFids.isEmpty() )
4387 mSelectedFeatureIds.subtract( mDeletedFids );
4390 mDeletedFids.clear();
4399 if ( !mDataProvider )
4410 std::unique_ptr< QUndoCommand > command = std::make_unique< QUndoCommand >();
4411 command->setObsolete(
true );
4414 mEditCommandActive =
false;
4415 mDeletedFids.clear();
4423 return mJoinBuffer->
addJoin( joinInfo );
4430 return mJoinBuffer->
removeJoin( joinLayerId );
4471 if ( oi < 0 || oi >= mExpressionFieldBuffer->
expressions().size() )
4474 return mExpressionFieldBuffer->
expressions().at( oi ).cachedExpression.expression();
4490 if ( !mDataProvider )
4495 mFields = mDataProvider->
fields();
4505 if ( mExpressionFieldBuffer )
4509 for (
auto aliasIt = mAttributeAliasMap.constBegin(); aliasIt != mAttributeAliasMap.constEnd(); ++aliasIt )
4515 mFields[ index ].setAlias( aliasIt.value() );
4518 for (
auto splitPolicyIt = mAttributeSplitPolicy.constBegin(); splitPolicyIt != mAttributeSplitPolicy.constEnd(); ++splitPolicyIt )
4520 int index = mFields.
lookupField( splitPolicyIt.key() );
4524 mFields[ index ].setSplitPolicy( splitPolicyIt.value() );
4527 for (
auto duplicatePolicyIt = mAttributeDuplicatePolicy.constBegin(); duplicatePolicyIt != mAttributeDuplicatePolicy.constEnd(); ++duplicatePolicyIt )
4529 int index = mFields.
lookupField( duplicatePolicyIt.key() );
4533 mFields[ index ].setDuplicatePolicy( duplicatePolicyIt.value() );
4537 QMap< QString, Qgis::FieldConfigurationFlags >::const_iterator flagsIt = mFieldConfigurationFlags.constBegin();
4538 for ( ; flagsIt != mFieldConfigurationFlags.constEnd(); ++flagsIt )
4544 mFields[index].setConfigurationFlags( flagsIt.value() );
4548 mDefaultValueOnUpdateFields.clear();
4549 QMap< QString, QgsDefaultValue >::const_iterator defaultIt = mDefaultExpressionMap.constBegin();
4550 for ( ; defaultIt != mDefaultExpressionMap.constEnd(); ++defaultIt )
4552 int index = mFields.
lookupField( defaultIt.key() );
4556 mFields[ index ].setDefaultValueDefinition( defaultIt.value() );
4557 if ( defaultIt.value().applyOnUpdate() )
4558 mDefaultValueOnUpdateFields.insert( index );
4561 QMap< QString, QgsFieldConstraints::Constraints >::const_iterator constraintIt = mFieldConstraints.constBegin();
4562 for ( ; constraintIt != mFieldConstraints.constEnd(); ++constraintIt )
4564 int index = mFields.
lookupField( constraintIt.key() );
4577 mFields[ index ].setConstraints( constraints );
4580 QMap< QString, QPair< QString, QString > >::const_iterator constraintExpIt = mFieldConstraintExpressions.constBegin();
4581 for ( ; constraintExpIt != mFieldConstraintExpressions.constEnd(); ++constraintExpIt )
4583 int index = mFields.
lookupField( constraintExpIt.key() );
4594 mFields[ index ].setConstraints( constraints );
4598 for ( ; constraintStrengthIt != mFieldConstraintStrength.constEnd(); ++constraintStrengthIt )
4600 int index = mFields.
lookupField( constraintStrengthIt.key().first );
4610 constraints.
setConstraintStrength( constraintStrengthIt.key().second, constraintStrengthIt.value() );
4611 mFields[ index ].setConstraints( constraints );
4614 auto fieldWidgetIterator = mFieldWidgetSetups.constBegin();
4615 for ( ; fieldWidgetIterator != mFieldWidgetSetups.constEnd(); ++ fieldWidgetIterator )
4617 int index = mFields.
indexOf( fieldWidgetIterator.key() );
4621 mFields[index].setEditorWidgetSetup( fieldWidgetIterator.value() );
4624 if ( oldFields != mFields )
4627 mEditFormConfig.setFields( mFields );
4636 if ( index < 0 || index >= mFields.
count() || !mDataProvider )
4640 if ( expression.isEmpty() )
4644 std::unique_ptr< QgsExpressionContext > tempContext;
4649 evalContext = tempContext.get();
4684 if ( index < 0 || index >= mFields.
count() )
4689 mDefaultExpressionMap.insert( mFields.
at( index ).
name(), definition );
4693 mDefaultExpressionMap.remove( mFields.
at( index ).
name() );
4702 if ( index < 0 || index >= mFields.
count() )
4713 if ( !mDataProvider )
4728 if ( mEditBuffer && ! mDataProvider->
transaction() )
4732 for (
const QVariant &v : constUniqueValues )
4734 vals << v.toString();
4738 QMapIterator< QgsFeatureId, QgsFeature > addedIt( added );
4739 while ( addedIt.hasNext() && ( limit < 0 ||
uniqueValues.count() < limit ) )
4742 QVariant v = addedIt.value().attribute( index );
4745 QString vs = v.toString();
4746 if ( !vals.contains( vs ) )
4755 while ( it.hasNext() && ( limit < 0 ||
uniqueValues.count() < limit ) )
4758 QVariant v = it.value().value( index );
4761 QString vs = v.toString();
4762 if ( !vals.contains( vs ) )
4795 .setSubsetOfAttributes( attList ) );
4798 QVariant currentValue;
4799 QHash<QString, QVariant> val;
4803 val.insert( currentValue.toString(), currentValue );
4804 if ( limit >= 0 && val.size() >= limit )
4810 return qgis::listToSet( val.values() );
4814 Q_ASSERT_X(
false,
"QgsVectorLayer::uniqueValues()",
"Unknown source of the field!" );
4822 QStringList results;
4823 if ( !mDataProvider )
4838 if ( mEditBuffer && ! mDataProvider->
transaction() )
4841 QMapIterator< QgsFeatureId, QgsFeature > addedIt( added );
4842 while ( addedIt.hasNext() && ( limit < 0 || results.count() < limit ) && ( !feedback || !feedback->
isCanceled() ) )
4845 QVariant v = addedIt.value().attribute( index );
4848 QString vs = v.toString();
4849 if ( vs.contains( substring, Qt::CaseInsensitive ) && !results.contains( vs ) )
4857 while ( it.hasNext() && ( limit < 0 || results.count() < limit ) && ( !feedback || !feedback->
isCanceled() ) )
4860 QVariant v = it.value().value( index );
4863 QString vs = v.toString();
4864 if ( vs.contains( substring, Qt::CaseInsensitive ) && !results.contains( vs ) )
4895 QString fieldName = mFields.
at( index ).
name();
4896 request.
setFilterExpression( QStringLiteral(
"\"%1\" ILIKE '%%2%'" ).arg( fieldName, substring ) );
4900 QString currentValue;
4903 currentValue = f.
attribute( index ).toString();
4904 if ( !results.contains( currentValue ) )
4905 results << currentValue;
4907 if ( ( limit >= 0 && results.size() >= limit ) || ( feedback && feedback->
isCanceled() ) )
4917 Q_ASSERT_X(
false,
"QgsVectorLayer::uniqueStringsMatching()",
"Unknown source of the field!" );
4926 minimumOrMaximumValue( index, &minimum,
nullptr );
4935 minimumOrMaximumValue( index,
nullptr, &maximum );
4943 minimumOrMaximumValue( index, &minimum, &maximum );
4946void QgsVectorLayer::minimumOrMaximumValue(
int index, QVariant *minimum, QVariant *maximum )
const
4951 *minimum = QVariant();
4953 *maximum = QVariant();
4955 if ( !mDataProvider )
4975 if ( mEditBuffer && ! mDataProvider->
transaction() )
4978 QMapIterator< QgsFeatureId, QgsFeature > addedIt( added );
4979 while ( addedIt.hasNext() )
4982 const QVariant v = addedIt.value().attribute( index );
4990 while ( it.hasNext() )
4993 const QVariant v = it.value().value( index );
5029 .setSubsetOfAttributes( attList ) );
5032 bool firstValue =
true;
5035 const QVariant currentValue = f.
attribute( index );
5042 *minimum = currentValue;
5044 *maximum = currentValue;
5049 if ( minimum && currentValue.isValid() &&
qgsVariantLessThan( currentValue, *minimum ) )
5050 *minimum = currentValue;
5052 *maximum = currentValue;
5059 Q_ASSERT_X(
false,
"QgsVectorLayer::minimumOrMaximumValue()",
"Unknown source of the field!" );
5062void QgsVectorLayer::createEditBuffer()
5098void QgsVectorLayer::clearEditBuffer()
5103 mEditBuffer =
nullptr;
5118 if ( !mDataProvider )
5121 *
error = tr(
"Layer is invalid" );
5127 if ( attrIndex >= 0 )
5134 bool providerOk =
false;
5135 QVariant val = mDataProvider->
aggregate(
aggregate, attrIndex, parameters, context, providerOk, fids );
5149 c.setFidsFilter( *fids );
5150 c.setParameters( parameters );
5151 bool aggregateOk =
false;
5152 const QVariant result =
c.calculate(
aggregate, fieldOrExpression, context, &aggregateOk, feedback );
5155 if ( !aggregateOk &&
error )
5178 return mFeatureBlendMode;
5181void QgsVectorLayer::readSldLabeling(
const QDomNode &node )
5188 QDomElement element = node.toElement();
5189 if ( element.isNull() )
5192 QDomElement userStyleElem = element.firstChildElement( QStringLiteral(
"UserStyle" ) );
5193 if ( userStyleElem.isNull() )
5195 QgsDebugMsgLevel( QStringLiteral(
"Info: UserStyle element not found." ), 4 );
5199 QDomElement featTypeStyleElem = userStyleElem.firstChildElement( QStringLiteral(
"FeatureTypeStyle" ) );
5200 if ( featTypeStyleElem.isNull() )
5202 QgsDebugMsgLevel( QStringLiteral(
"Info: FeatureTypeStyle element not found." ), 4 );
5207 QDomElement mergedFeatTypeStyle = featTypeStyleElem.cloneNode(
false ).toElement();
5212 bool needRuleBasedLabeling =
false;
5215 while ( !featTypeStyleElem.isNull() )
5217 QDomElement ruleElem = featTypeStyleElem.firstChildElement( QStringLiteral(
"Rule" ) );
5218 while ( !ruleElem.isNull() )
5222 bool hasTextSymbolizer =
false;
5223 bool hasRuleBased =
false;
5224 QDomElement ruleChildElem = ruleElem.firstChildElement();
5225 while ( !ruleChildElem.isNull() )
5228 if ( ruleChildElem.localName() == QLatin1String(
"Filter" ) ||
5229 ruleChildElem.localName() == QLatin1String(
"MinScaleDenominator" ) ||
5230 ruleChildElem.localName() == QLatin1String(
"MaxScaleDenominator" ) )
5232 hasRuleBased =
true;
5235 else if ( ruleChildElem.localName() == QLatin1String(
"TextSymbolizer" ) )
5237 QgsDebugMsgLevel( QStringLiteral(
"Info: TextSymbolizer element found" ), 4 );
5238 hasTextSymbolizer =
true;
5241 ruleChildElem = ruleChildElem.nextSiblingElement();
5244 if ( hasTextSymbolizer )
5249 mergedFeatTypeStyle.appendChild( ruleElem.cloneNode().toElement() );
5253 QgsDebugMsgLevel( QStringLiteral(
"Info: Filter or Min/MaxScaleDenominator element found: need a RuleBasedLabeling" ), 4 );
5254 needRuleBasedLabeling =
true;
5259 if ( ruleCount > 1 )
5261 QgsDebugMsgLevel( QStringLiteral(
"Info: More Rule elements found: need a RuleBasedLabeling" ), 4 );
5262 needRuleBasedLabeling =
true;
5266 if ( ruleCount == 0 )
5268 needRuleBasedLabeling =
false;
5271 ruleElem = ruleElem.nextSiblingElement( QStringLiteral(
"Rule" ) );
5273 featTypeStyleElem = featTypeStyleElem.nextSiblingElement( QStringLiteral(
"FeatureTypeStyle" ) );
5276 if ( ruleCount == 0 )
5278 QgsDebugMsgLevel( QStringLiteral(
"Info: No TextSymbolizer element." ), 4 );
5282 QDomElement ruleElem = mergedFeatTypeStyle.firstChildElement( QStringLiteral(
"Rule" ) );
5284 if ( needRuleBasedLabeling )
5288 while ( !ruleElem.isNull() )
5291 QString label, description, filterExp;
5292 int scaleMinDenom = 0, scaleMaxDenom = 0;
5296 QDomElement childElem = ruleElem.firstChildElement();
5297 while ( !childElem.isNull() )
5299 if ( childElem.localName() == QLatin1String(
"Name" ) )
5303 if ( label.isEmpty() )
5304 label = childElem.firstChild().nodeValue();
5306 else if ( childElem.localName() == QLatin1String(
"Description" ) )
5309 QDomElement titleElem = childElem.firstChildElement( QStringLiteral(
"Title" ) );
5310 if ( !titleElem.isNull() )
5312 label = titleElem.firstChild().nodeValue();
5315 QDomElement abstractElem = childElem.firstChildElement( QStringLiteral(
"Abstract" ) );
5316 if ( !abstractElem.isNull() )
5318 description = abstractElem.firstChild().nodeValue();
5321 else if ( childElem.localName() == QLatin1String(
"Abstract" ) )
5324 description = childElem.firstChild().nodeValue();
5326 else if ( childElem.localName() == QLatin1String(
"Title" ) )
5329 label = childElem.firstChild().nodeValue();
5331 else if ( childElem.localName() == QLatin1String(
"Filter" ) )
5347 else if ( childElem.localName() == QLatin1String(
"MinScaleDenominator" ) )
5350 int v = childElem.firstChild().nodeValue().toInt( &ok );
5354 else if ( childElem.localName() == QLatin1String(
"MaxScaleDenominator" ) )
5357 int v = childElem.firstChild().nodeValue().toInt( &ok );
5361 else if ( childElem.localName() == QLatin1String(
"TextSymbolizer" ) )
5363 readSldTextSymbolizer( childElem, settings );
5366 childElem = childElem.nextSiblingElement();
5372 ruleElem = ruleElem.nextSiblingElement();
5382 QDomElement textSymbolizerElem = ruleElem.firstChildElement( QStringLiteral(
"TextSymbolizer" ) );
5384 if ( readSldTextSymbolizer( textSymbolizerElem, s ) )
5392bool QgsVectorLayer::readSldTextSymbolizer(
const QDomNode &node,
QgsPalLayerSettings &settings )
const
5396 if ( node.localName() != QLatin1String(
"TextSymbolizer" ) )
5398 QgsDebugMsgLevel( QStringLiteral(
"Not a TextSymbolizer element: %1" ).arg( node.localName() ), 3 );
5401 QDomElement textSymbolizerElem = node.toElement();
5403 QDomElement labelElem = textSymbolizerElem.firstChildElement( QStringLiteral(
"Label" ) );
5404 if ( !labelElem.isNull() )
5406 QDomElement propertyNameElem = labelElem.firstChildElement( QStringLiteral(
"PropertyName" ) );
5407 if ( !propertyNameElem.isNull() )
5412 QString labelAttribute = propertyNameElem.text();
5416 int fieldIndex = mFields.
lookupField( labelAttribute );
5417 if ( fieldIndex == -1 )
5433 QgsDebugMsgLevel( QStringLiteral(
"Info: PropertyName element not found." ), 4 );
5444 if ( textSymbolizerElem.hasAttribute( QStringLiteral(
"uom" ) ) )
5449 QString fontFamily = QStringLiteral(
"Sans-Serif" );
5450 int fontPointSize = 10;
5452 int fontWeight = -1;
5453 bool fontItalic =
false;
5454 bool fontUnderline =
false;
5457 QDomElement fontElem = textSymbolizerElem.firstChildElement( QStringLiteral(
"Font" ) );
5458 if ( !fontElem.isNull() )
5461 for ( QgsStringMap::iterator it = fontSvgParams.begin(); it != fontSvgParams.end(); ++it )
5463 QgsDebugMsgLevel( QStringLiteral(
"found fontSvgParams %1: %2" ).arg( it.key(), it.value() ), 4 );
5465 if ( it.key() == QLatin1String(
"font-family" ) )
5467 fontFamily = it.value();
5469 else if ( it.key() == QLatin1String(
"font-style" ) )
5471 fontItalic = ( it.value() == QLatin1String(
"italic" ) ) || ( it.value() == QLatin1String(
"Italic" ) );
5473 else if ( it.key() == QLatin1String(
"font-size" ) )
5476 int fontSize = it.value().toInt( &ok );
5479 fontPointSize = fontSize;
5480 fontUnitSize = sldUnitSize;
5483 else if ( it.key() == QLatin1String(
"font-weight" ) )
5485 if ( ( it.value() == QLatin1String(
"bold" ) ) || ( it.value() == QLatin1String(
"Bold" ) ) )
5486 fontWeight = QFont::Bold;
5488 else if ( it.key() == QLatin1String(
"font-underline" ) )
5490 fontUnderline = ( it.value() == QLatin1String(
"underline" ) ) || ( it.value() == QLatin1String(
"Underline" ) );
5496 QFont font( fontFamily, fontPointSize, fontWeight, fontItalic );
5497 font.setUnderline( fontUnderline );
5499 format.
setSize( fontPointSize );
5503 QDomElement fillElem = textSymbolizerElem.firstChildElement( QStringLiteral(
"Fill" ) );
5505 Qt::BrushStyle textBrush = Qt::SolidPattern;
5507 if ( textColor.isValid() )
5509 QgsDebugMsgLevel( QStringLiteral(
"Info: textColor %1." ).arg( QVariant( textColor ).toString() ), 4 );
5516 QDomElement haloElem = textSymbolizerElem.firstChildElement( QStringLiteral(
"Halo" ) );
5517 if ( !haloElem.isNull() )
5522 QDomElement radiusElem = haloElem.firstChildElement( QStringLiteral(
"Radius" ) );
5523 if ( !radiusElem.isNull() )
5526 double bufferSize = radiusElem.text().toDouble( &ok );
5529 bufferSettings.
setSize( bufferSize );
5534 QDomElement haloFillElem = haloElem.firstChildElement( QStringLiteral(
"Fill" ) );
5536 Qt::BrushStyle bufferBrush = Qt::SolidPattern;
5538 if ( bufferColor.isValid() )
5540 QgsDebugMsgLevel( QStringLiteral(
"Info: bufferColor %1." ).arg( QVariant( bufferColor ).toString() ), 4 );
5541 bufferSettings.
setColor( bufferColor );
5546 QDomElement labelPlacementElem = textSymbolizerElem.firstChildElement( QStringLiteral(
"LabelPlacement" ) );
5547 if ( !labelPlacementElem.isNull() )
5550 QDomElement pointPlacementElem = labelPlacementElem.firstChildElement( QStringLiteral(
"PointPlacement" ) );
5551 if ( !pointPlacementElem.isNull() )
5559 QDomElement displacementElem = pointPlacementElem.firstChildElement( QStringLiteral(
"Displacement" ) );
5560 if ( !displacementElem.isNull() )
5562 QDomElement displacementXElem = displacementElem.firstChildElement( QStringLiteral(
"DisplacementX" ) );
5563 if ( !displacementXElem.isNull() )
5566 double xOffset = displacementXElem.text().toDouble( &ok );
5573 QDomElement displacementYElem = displacementElem.firstChildElement( QStringLiteral(
"DisplacementY" ) );
5574 if ( !displacementYElem.isNull() )
5577 double yOffset = displacementYElem.text().toDouble( &ok );
5585 QDomElement anchorPointElem = pointPlacementElem.firstChildElement( QStringLiteral(
"AnchorPoint" ) );
5586 if ( !anchorPointElem.isNull() )
5588 QDomElement anchorPointXElem = anchorPointElem.firstChildElement( QStringLiteral(
"AnchorPointX" ) );
5589 if ( !anchorPointXElem.isNull() )
5592 double xOffset = anchorPointXElem.text().toDouble( &ok );
5599 QDomElement anchorPointYElem = anchorPointElem.firstChildElement( QStringLiteral(
"AnchorPointY" ) );
5600 if ( !anchorPointYElem.isNull() )
5603 double yOffset = anchorPointYElem.text().toDouble( &ok );
5612 QDomElement rotationElem = pointPlacementElem.firstChildElement( QStringLiteral(
"Rotation" ) );
5613 if ( !rotationElem.isNull() )
5616 double rotation = rotationElem.text().toDouble( &ok );
5626 QDomElement linePlacementElem = labelPlacementElem.firstChildElement( QStringLiteral(
"LinePlacement" ) );
5627 if ( !linePlacementElem.isNull() )
5636 QDomElement vendorOptionElem = textSymbolizerElem.firstChildElement( QStringLiteral(
"VendorOption" ) );
5637 while ( !vendorOptionElem.isNull() && vendorOptionElem.localName() == QLatin1String(
"VendorOption" ) )
5639 QString optionName = vendorOptionElem.attribute( QStringLiteral(
"name" ) );
5640 QString optionValue;
5641 if ( vendorOptionElem.firstChild().nodeType() == QDomNode::TextNode )
5643 optionValue = vendorOptionElem.firstChild().nodeValue();
5647 if ( vendorOptionElem.firstChild().nodeType() == QDomNode::ElementNode &&
5648 vendorOptionElem.firstChild().localName() == QLatin1String(
"Literal" ) )
5651 optionValue = vendorOptionElem.firstChild().firstChild().nodeValue();
5655 QgsDebugError( QStringLiteral(
"unexpected child of %1 named %2" ).arg( vendorOptionElem.localName(), optionName ) );
5659 if ( !optionName.isEmpty() && !optionValue.isEmpty() )
5661 vendorOptions[ optionName ] = optionValue;
5664 vendorOptionElem = vendorOptionElem.nextSiblingElement();
5666 if ( !vendorOptions.isEmpty() )
5668 for ( QgsStringMap::iterator it = vendorOptions.begin(); it != vendorOptions.end(); ++it )
5670 if ( it.key() == QLatin1String(
"underlineText" ) && it.value() == QLatin1String(
"true" ) )
5672 font.setUnderline(
true );
5675 else if ( it.key() == QLatin1String(
"strikethroughText" ) && it.value() == QLatin1String(
"true" ) )
5677 font.setStrikeOut(
true );
5680 else if ( it.key() == QLatin1String(
"maxDisplacement" ) )
5684 else if ( it.key() == QLatin1String(
"followLine" ) && it.value() == QLatin1String(
"true" ) )
5695 else if ( it.key() == QLatin1String(
"maxAngleDelta" ) )
5698 double angle = it.value().toDouble( &ok );
5706 else if ( it.key() == QLatin1String(
"conflictResolution" ) && it.value() == QLatin1String(
"false" ) )
5710 else if ( it.key() == QLatin1String(
"forceLeftToRight" ) && it.value() == QLatin1String(
"false" ) )
5714 else if ( it.key() == QLatin1String(
"group" ) && it.value() == QLatin1String(
"yes" ) )
5718 else if ( it.key() == QLatin1String(
"labelAllGroup" ) && it.value() == QLatin1String(
"true" ) )
5734 return mEditFormConfig;
5745 mEditFormConfig.onRelationsLoaded();
5755 if ( config.isEmpty() )
5791 if ( !mDiagramLayerSettings )
5793 *mDiagramLayerSettings = s;
5801 QString myMetadata = QStringLiteral(
"<html><head></head>\n<body>\n" );
5806 myMetadata += QStringLiteral(
"<h1>" ) + tr(
"Information from provider" ) + QStringLiteral(
"</h1>\n<hr>\n" );
5807 myMetadata += QLatin1String(
"<table class=\"list-view\">\n" );
5812 myMetadata += QStringLiteral(
"<tr><td class=\"highlight\">" ) + tr(
"Storage" ) + QStringLiteral(
"</td><td>" ) +
storageType() + QStringLiteral(
"</td></tr>\n" );
5818 myMetadata += QStringLiteral(
"<tr><td class=\"highlight\">" ) + tr(
"Comment" ) + QStringLiteral(
"</td><td>" ) +
dataComment() + QStringLiteral(
"</td></tr>\n" );
5824 myMetadata += QStringLiteral(
"<tr><td class=\"highlight\">" ) + tr(
"Encoding" ) + QStringLiteral(
"</td><td>" ) + provider->encoding() + QStringLiteral(
"</td></tr>\n" );
5825 myMetadata += provider->htmlMetadata();
5840 myMetadata += QStringLiteral(
"<tr><td class=\"highlight\">" ) + tr(
"Geometry" ) + QStringLiteral(
"</td><td>" ) + typeString + QStringLiteral(
"</td></tr>\n" );
5844 myMetadata += QStringLiteral(
"<tr><td class=\"highlight\">" ) + tr(
"Extent" ) + QStringLiteral(
"</td><td>" ) +
extent().
toString() + QStringLiteral(
"</td></tr>\n" );
5848 QLocale locale = QLocale();
5849 locale.setNumberOptions( locale.numberOptions() &= ~QLocale::NumberOption::OmitGroupSeparator );
5850 myMetadata += QStringLiteral(
"<tr><td class=\"highlight\">" )
5851 + tr(
"Feature count" ) + QStringLiteral(
"</td><td>" )
5853 + QStringLiteral(
"</td></tr>\n" );
5856 myMetadata += QLatin1String(
"</table>\n<br><br>" );
5865 myMetadata += QStringLiteral(
"<h1>" ) + tr(
"Identification" ) + QStringLiteral(
"</h1>\n<hr>\n" );
5866 myMetadata += htmlFormatter.identificationSectionHtml( );
5867 myMetadata += QLatin1String(
"<br><br>\n" );
5870 myMetadata += QStringLiteral(
"<h1>" ) + tr(
"Extent" ) + QStringLiteral(
"</h1>\n<hr>\n" );
5871 myMetadata += htmlFormatter.extentSectionHtml(
isSpatial() );
5872 myMetadata += QLatin1String(
"<br><br>\n" );
5875 myMetadata += QStringLiteral(
"<h1>" ) + tr(
"Access" ) + QStringLiteral(
"</h1>\n<hr>\n" );
5876 myMetadata += htmlFormatter.accessSectionHtml( );
5877 myMetadata += QLatin1String(
"<br><br>\n" );
5880 myMetadata += QStringLiteral(
"<h1>" ) + tr(
"Fields" ) + QStringLiteral(
"</h1>\n<hr>\n<table class=\"list-view\">\n" );
5884 if ( !pkAttrList.isEmpty() )
5886 myMetadata += QStringLiteral(
"<tr><td class=\"highlight\">" ) + tr(
"Primary key attributes" ) + QStringLiteral(
"</td><td>" );
5887 const auto constPkAttrList = pkAttrList;
5888 for (
int idx : constPkAttrList )
5892 myMetadata += QLatin1String(
"</td></tr>\n" );
5898 myMetadata += QStringLiteral(
"<tr><td class=\"highlight\">" ) + tr(
"Count" ) + QStringLiteral(
"</td><td>" ) + QString::number( myFields.
size() ) + QStringLiteral(
"</td></tr>\n" );
5900 myMetadata += QLatin1String(
"</table>\n<br><table width=\"100%\" class=\"tabular-view\">\n" );
5901 myMetadata += QLatin1String(
"<tr><th>" ) + tr(
"Field" ) + QLatin1String(
"</th><th>" ) + tr(
"Type" ) + QLatin1String(
"</th><th>" ) + tr(
"Length" ) + QLatin1String(
"</th><th>" ) + tr(
"Precision" ) + QLatin1String(
"</th><th>" ) + tr(
"Comment" ) + QLatin1String(
"</th></tr>\n" );
5903 for (
int i = 0; i < myFields.
size(); ++i )
5908 rowClass = QStringLiteral(
"class=\"odd-row\"" );
5909 myMetadata += QLatin1String(
"<tr " ) + rowClass + QLatin1String(
"><td>" ) + myField.
displayNameWithAlias() + QLatin1String(
"</td><td>" ) + myField.
typeName() + QLatin1String(
"</td><td>" ) + QString::number( myField.
length() ) + QLatin1String(
"</td><td>" ) + QString::number( myField.
precision() ) + QLatin1String(
"</td><td>" ) + myField.
comment() + QLatin1String(
"</td></tr>\n" );
5913 myMetadata += QLatin1String(
"</table>\n<br><br>" );
5916 myMetadata += QStringLiteral(
"<h1>" ) + tr(
"Contacts" ) + QStringLiteral(
"</h1>\n<hr>\n" );
5917 myMetadata += htmlFormatter.contactsSectionHtml( );
5918 myMetadata += QLatin1String(
"<br><br>\n" );
5921 myMetadata += QStringLiteral(
"<h1>" ) + tr(
"Links" ) + QStringLiteral(
"</h1>\n<hr>\n" );
5922 myMetadata += htmlFormatter.linksSectionHtml( );
5923 myMetadata += QLatin1String(
"<br><br>\n" );
5926 myMetadata += QStringLiteral(
"<h1>" ) + tr(
"History" ) + QStringLiteral(
"</h1>\n<hr>\n" );
5927 myMetadata += htmlFormatter.historySectionHtml( );
5928 myMetadata += QLatin1String(
"<br><br>\n" );
5932 myMetadata += QLatin1String(
"\n</body>\n</html>\n" );
5936void QgsVectorLayer::invalidateSymbolCountedFlag()
5940 mSymbolFeatureCounted =
false;
5943void QgsVectorLayer::onFeatureCounterCompleted()
5948 mFeatureCounter =
nullptr;
5951void QgsVectorLayer::onFeatureCounterTerminated()
5955 mFeatureCounter =
nullptr;
5958void QgsVectorLayer::onJoinedFieldsChanged()
5966void QgsVectorLayer::onFeatureDeleted(
QgsFeatureId fid )
5970 if ( mEditCommandActive || mCommitChangesActive )
5972 mDeletedFids << fid;
5976 mSelectedFeatureIds.remove( fid );
5983void QgsVectorLayer::onRelationsLoaded()
5987 mEditFormConfig.onRelationsLoaded();
5990void QgsVectorLayer::onSymbolsCounted()
5994 if ( mFeatureCounter )
5996 mSymbolFeatureCounted =
true;
6008 return p->relationManager()->referencingRelations(
this, idx );
6017 return mWeakRelations;
6024 mWeakRelations = relations;
6033 QString joinKey = mAuxiliaryLayerKey;
6034 if ( !key.isEmpty() )
6037 if ( storage.
isValid() && !joinKey.isEmpty() )
6062 mAuxiliaryLayerKey.clear();
6064 if ( mAuxiliaryLayer )
6077 mAuxiliaryLayer.reset( alayer );
6078 if ( mAuxiliaryLayer )
6079 mAuxiliaryLayer->setParent(
this );
6087 return mAuxiliaryLayer.get();
6094 return mAuxiliaryLayer.get();
6101 if ( mDataProvider )
6106void QgsVectorLayer::emitDataChanged()
6110 if ( mDataChangedFired )
6117 if (
QgsVectorLayer *layerWeDependUpon = qobject_cast<QgsVectorLayer *>( sender() );
6118 layerWeDependUpon && layerWeDependUpon->mCommitChangesActive )
6123 mDataChangedFired =
true;
6125 mDataChangedFired =
false;
6132 QSet<QgsMapLayerDependency> deps;
6133 const auto constODeps = oDeps;
6140 QSet<QgsMapLayerDependency> toAdd = deps -
dependencies();
6160 if ( mDataProvider )
6184 if ( ! toAdd.isEmpty() )
6194 if ( fieldIndex < 0 || fieldIndex >= mFields.
count() || !mDataProvider )
6212 QMap< QgsFieldConstraints::Constraint, QgsFieldConstraints::ConstraintStrength > m;
6214 if ( fieldIndex < 0 || fieldIndex >= mFields.
count() )
6217 QString
name = mFields.
at( fieldIndex ).
name();
6220 for ( ; conIt != mFieldConstraintStrength.constEnd(); ++conIt )
6222 if ( conIt.key().first ==
name )
6224 m[ conIt.key().second ] = mFieldConstraintStrength.value( conIt.key() );
6235 if ( index < 0 || index >= mFields.
count() )
6242 constraints |= constraint;
6243 mFieldConstraints.insert(
name, constraints );
6245 mFieldConstraintStrength.insert( qMakePair(
name, constraint ), strength );
6254 if ( index < 0 || index >= mFields.
count() )
6261 constraints &= ~constraint;
6262 mFieldConstraints.insert(
name, constraints );
6264 mFieldConstraintStrength.remove( qMakePair(
name, constraint ) );
6273 if ( index < 0 || index >= mFields.
count() )
6283 if ( index < 0 || index >= mFields.
count() )
6293 if ( index < 0 || index >= mFields.
count() )
6296 if ( expression.isEmpty() )
6298 mFieldConstraintExpressions.remove( mFields.
at( index ).
name() );
6302 mFieldConstraintExpressions.insert( mFields.
at( index ).
name(), qMakePair( expression, description ) );
6311 if ( index < 0 || index >= mFields.
count() )
6314 mFieldConfigurationFlags.insert( mFields.
at( index ).
name(),
flags );
6322 if ( index < 0 || index >= mFields.
count() )
6325 flags.setFlag( flag, active );
6333 if ( index < 0 || index >= mFields.
count() )
6343 if ( index < 0 || index >= mFields.
count() )
6347 mFieldWidgetSetups.remove( mFields.
at( index ).
name() );
6349 mFieldWidgetSetups.insert( mFields.
at( index ).
name(), setup );
6357 if ( index < 0 || index >= mFields.
count() )
6368 if (
customProperty( QStringLiteral(
"labeling" ) ).toString() == QLatin1String(
"pal" ) )
6370 if (
customProperty( QStringLiteral(
"labeling/enabled" ), QVariant(
false ) ).toBool() )
6374 settings.readFromLayerCustomProperties(
this );
6381 for (
const QString &key : constCustomPropertyKeys )
6383 if ( key.startsWith( QLatin1String(
"labeling/" ) ) )
6395 return mAllowCommit;
6413 return mGeometryOptions.get();
6427 return mReadExtentFromXml;
6430void QgsVectorLayer::onDirtyTransaction(
const QString &sql,
const QString &name )
6435 if ( tr && mEditBuffer )
6437 qobject_cast<QgsVectorLayerEditPassthrough *>( mEditBuffer )->update( tr, sql,
name );
6443 QList<QgsVectorLayer *> layers;
6444 QMap<QgsVectorLayer *, QgsFeatureIds>::const_iterator i;
6447 if ( includeAuxiliaryLayers || !qobject_cast< QgsAuxiliaryLayer * >( i.key() ) )
6448 layers.append( i.key() );
6455 return mHandledFeatures[layer];
The Qgis class provides global constants for use throughout the application.
@ SelectAtId
Fast access to features using their ID.
@ CreateRenderer
Provider can create feature renderers using backend-specific formatting information....
@ CreateLabeling
Provider can set labeling settings using backend-specific formatting information. Since QGIS 3....
@ ReadLayerMetadata
Provider can read layer metadata from data store. Since QGIS 3.0. See QgsDataProvider::layerMetadata(...
@ DeleteFeatures
Allows deletion of features.
QFlags< VectorRenderingSimplificationFlag > VectorRenderingSimplificationFlags
Simplification flags for vector feature rendering.
@ Composition
Fix relation, related elements are part of the parent and a parent copy will copy any children or del...
@ Association
Loose relation, related elements are not part of the parent and a parent copy will not copy any child...
GeometryOperationResult
Success or failure of a geometry operation.
@ InvalidInputGeometryType
The input geometry (ring, part, split line, etc.) has not the correct geometry type.
@ Success
Operation succeeded.
@ SelectionIsEmpty
No features were selected.
@ AddRingNotInExistingFeature
The input ring doesn't have any existing ring to fit into.
@ AddRingNotClosed
The input ring is not closed.
@ SelectionIsGreaterThanOne
More than one features were selected.
@ LayerNotEditable
Cannot edit layer.
SpatialIndexPresence
Enumeration of spatial index presence states.
@ Unknown
Spatial index presence cannot be determined, index may or may not exist.
VectorRenderingSimplificationFlag
Simplification flags for vector feature rendering.
@ NoSimplification
No simplification can be applied.
@ OverPoint
Arranges candidates over a point (or centroid of a polygon), or at a preset offset from the point....
@ Curved
Arranges candidates following the curvature of a line feature. Applies to line layers only.
@ AroundPoint
Arranges candidates in a circle around a point (or centroid of a polygon). Applies to point or polygo...
@ Line
Arranges candidates parallel to a generalised line representing the feature or parallel to a polygon'...
@ Horizontal
Arranges horizontal candidates scattered throughout a polygon feature. Applies to polygon layers only...
@ PerimeterCurved
Arranges candidates following the curvature of a polygon's boundary. Applies to polygon layers only.
QFlags< VectorLayerTypeFlag > VectorLayerTypeFlags
Vector layer type flags.
VectorSimplificationAlgorithm
Simplification algorithms for vector features.
@ Distance
The simplification uses the distance between points to remove duplicate points.
@ ExactIntersect
Use exact geometry intersection (slower) instead of bounding boxes.
@ SubsetOfAttributes
Fetch only a subset of attributes (setSubsetOfAttributes sets this flag)
@ NoGeometry
Geometry is not required. It may still be returned if e.g. required for a filter condition.
@ FastExtent3D
Provider's 3D extent retrieval via QgsDataProvider::extent3D() is always guaranteed to be trivial/fas...
@ FastExtent2D
Provider's 2D extent retrieval via QgsDataProvider::extent() is always guaranteed to be trivial/fast ...
@ BufferedGroups
Buffered transactional editing means that all editable layers in the buffered transaction group are t...
FieldDomainSplitPolicy
Split policy for field domains.
@ Duplicate
Duplicate original value.
BlendMode
Blending modes defining the available composition modes that can be used when painting.
GeometryType
The geometry types are used to group Qgis::WkbType in a coarse way.
@ Generated
A generated relation is a child of a polymorphic relation.
@ Normal
A normal relation.
FieldDuplicatePolicy
Duplicate policy for fields.
@ Duplicate
Duplicate original value.
static const float DEFAULT_MAPTOPIXEL_THRESHOLD
Default threshold between map coordinates and device coordinates for map2pixel simplification.
QFlags< DataProviderReadFlag > DataProviderReadFlags
Flags which control data provider construction.
FeatureAvailability
Possible return value for QgsFeatureSource::hasFeatures() to determine if a source is empty.
@ FeaturesMaybeAvailable
There may be features available in this source.
@ FeaturesAvailable
There is at least one feature available in this source.
@ NoFeaturesAvailable
There are certainly no features available in this source.
@ Provider
Field originates from the underlying data provider of the vector layer.
@ Edit
Field has been temporarily added in editing mode.
@ Unknown
The field origin has not been specified.
@ Expression
Field is calculated from an expression.
@ Join
Field originates from a joined layer.
RenderUnit
Rendering size units.
@ Points
Points (e.g., for font sizes)
@ LoadDefaultStyle
Reset the layer's style to the default for the datasource.
@ ForceReadOnly
Open layer in a read-only mode.
Aggregate
Available aggregates to calculate.
VertexMarkerType
Editing vertex markers, used for showing vertices during a edit operation.
@ SemiTransparentCircle
Semi-transparent circle marker.
VectorEditResult
Specifies the result of a vector layer edit operation.
@ Success
Edit operation was successful.
@ InvalidLayer
Edit failed due to invalid layer.
WkbType
The WKB type describes the number of dimensions a geometry has.
FieldConfigurationFlag
Configuration flags for fields These flags are meant to be user-configurable and are not describing a...
@ HideFromWfs
Field is not available if layer is served as WFS from QGIS server.
@ NoFlag
No flag is defined.
@ HideFromWms
Field is not available if layer is served as WMS from QGIS server.
@ AllowOverlapIfRequired
Avoids overlapping labels when possible, but permit overlaps if labels for features cannot otherwise ...
QFlags< FieldConfigurationFlag > FieldConfigurationFlags
Configuration flags for fields These flags are meant to be user-configurable and are not describing a...
@ AlwaysAllowUpsideDown
Show upside down for all labels, including dynamic ones.
SelectBehavior
Specifies how a selection should be applied.
@ SetSelection
Set selection, removing any existing selection.
@ AddToSelection
Add selection to current selection.
@ IntersectSelection
Modify current selection to include only select features which match.
@ RemoveFromSelection
Remove from current selection.
Abstract base class for objects which generate elevation profiles.
virtual bool writeXml(QDomElement &collectionElem, const QgsPropertiesDefinition &definitions) const
Writes the current state of the property collection into an XML element.
Abstract base class - its implementations define different approaches to the labeling of a vector lay...
virtual bool accept(QgsStyleEntityVisitorInterface *visitor) const
Accepts the specified symbology visitor, causing it to visit all symbols associated with the labeling...
virtual void toSld(QDomNode &parent, const QVariantMap &props) const
Writes the SE 1.1 TextSymbolizer element based on the current layer labeling settings.
static QgsAbstractVectorLayerLabeling * create(const QDomElement &element, const QgsReadWriteContext &context)
Try to create instance of an implementation based on the XML data.
virtual QDomElement save(QDomDocument &doc, const QgsReadWriteContext &context) const =0
Returns labeling configuration as XML element.
Storage and management of actions associated with a layer.
bool writeXml(QDomNode &layer_node) const
Writes the actions out in XML format.
QList< QgsAction > actions(const QString &actionScope=QString()) const
Returns a list of actions that are available in the given action scope.
QUuid addAction(Qgis::AttributeActionType type, const QString &name, const QString &command, bool capture=false)
Add an action with the given name and action details.
bool readXml(const QDomNode &layer_node)
Reads the actions in in XML format.
Utility class that encapsulates an action based on vector attributes.
Utility class for calculating aggregates for a field (or expression) over the features from a vector ...
static QgsRuntimeProfiler * profiler()
Returns the application runtime profiler.
static QgsTaskManager * taskManager()
Returns the application's task manager, used for managing application wide background task handling.
This is a container for configuration of the attribute table.
void readXml(const QDomNode &node)
Deserialize to XML on layer load.
void update(const QgsFields &fields)
Update the configuration with the given fields.
void writeXml(QDomNode &node) const
Serialize to XML on layer save.
Class allowing to manage the auxiliary storage for a vector layer.
QgsVectorLayerJoinInfo joinInfo() const
Returns information to use for joining with primary key and so on.
Class providing some utility methods to manage auxiliary storage.
QgsAuxiliaryLayer * createAuxiliaryLayer(const QgsField &field, QgsVectorLayer *layer) const
Creates an auxiliary layer for a vector layer.
bool isValid() const
Returns the status of the auxiliary storage currently defined.
A 3-dimensional box composed of x, y, z coordinates.
bool isNull() const
Test if the box is null (holding no spatial information).
The QgsConditionalLayerStyles class holds conditional style information for a layer.
bool readXml(const QDomNode &node, const QgsReadWriteContext &context)
Reads the condition styles state from a DOM node.
bool writeXml(QDomNode &node, QDomDocument &doc, const QgsReadWriteContext &context) const
Writes the condition styles state to a DOM node.
This class represents a coordinate reference system (CRS).
bool isValid() const
Returns whether this CRS is correctly initialized and usable.
Contains information about the context in which a coordinate transform is executed.
Abstract base class for curved geometry type.
virtual bool isClosed() const
Returns true if the curve is closed.
QgsCurve * clone() const override=0
Clones the geometry by performing a deep copy.
virtual bool containsElevationData() const
Returns true if the data provider definitely contains elevation related data.
virtual bool leaveUpdateMode()
Leave update mode.
virtual QString subsetString() const
Returns the subset definition string currently in use by the layer and used by the provider to limit ...
QgsCoordinateTransformContext transformContext() const
Returns data provider coordinate transform context.
virtual Qgis::DataProviderFlags flags() const
Returns the generic data provider flags.
virtual QgsCoordinateReferenceSystem crs() const =0
Returns the coordinate system for the data source.
void dataChanged()
Emitted whenever a change is made to the data provider which may have caused changes in the provider'...
void fullExtentCalculated()
Emitted whenever a deferred extent calculation is completed by the provider.
virtual Qgis::ProviderStyleStorageCapabilities styleStorageCapabilities() const
Returns the style storage capabilities.
virtual QgsBox3D extent3D() const
Returns the 3D extent of the layer.
virtual QgsLayerMetadata layerMetadata() const
Returns layer metadata collected from the provider's source.
virtual bool isValid() const =0
Returns true if this is a valid layer.
virtual bool setSubsetString(const QString &subset, bool updateFeatureCount=true)
Set the subset string used to create a subset of features in the layer.
virtual QString dataSourceUri(bool expandAuthConfig=false) const
Gets the data source specification.
virtual void updateExtents()
Update the extents of the layer.
virtual void reloadData()
Reloads the data from the source for providers with data caches to synchronize, changes in the data s...
virtual bool enterUpdateMode()
Enter update mode.
virtual QgsRectangle extent() const =0
Returns the extent of the layer.
virtual void setTransformContext(const QgsCoordinateTransformContext &transformContext)
Sets data coordinate transform context to transformContext.
Class for storing the component parts of a RDBMS data source URI (e.g.
bool useEstimatedMetadata() const
Returns true if estimated metadata should be used for the connection.
The QgsDefaultValue class provides a container for managing client side default values for fields.
bool isValid() const
Returns if this default value should be applied.
Stores the settings for rendering of all diagrams for a layer.
@ PositionX
X-coordinate data defined diagram position.
@ PositionY
Y-coordinate data defined diagram position.
@ Show
Whether to show the diagram.
void readXml(const QDomElement &elem)
Reads the diagram settings from a DOM element.
void writeXml(QDomElement &layerElem, QDomDocument &doc) const
Writes the diagram settings to a DOM element.
Evaluates and returns the diagram settings relating to a diagram for a specific feature.
virtual void writeXml(QDomElement &layerElem, QDomDocument &doc, const QgsReadWriteContext &context) const =0
Writes diagram state to a DOM element.
virtual QList< QgsDiagramSettings > diagramSettings() const =0
Returns list with all diagram settings in the renderer.
virtual void readXml(const QDomElement &elem, const QgsReadWriteContext &context)=0
Reads diagram state from a DOM element.
void clear()
Clear error messages.
Single scope for storing variables and functions for use within a QgsExpressionContext.
void setFields(const QgsFields &fields)
Convenience function for setting a fields for the scope.
void setFeature(const QgsFeature &feature)
Convenience function for setting a feature for the scope.
static QList< QgsExpressionContextScope * > globalProjectLayerScopes(const QgsMapLayer *layer)
Creates a list of three scopes: global, layer's project and layer.
static QgsExpressionContextScope * layerScope(const QgsMapLayer *layer)
Creates a new scope which contains variables and functions relating to a QgsMapLayer.
Expression contexts are used to encapsulate the parameters around which a QgsExpression should be eva...
QgsExpressionContextScope * popScope()
Removes the last scope from the expression context and return it.
void appendScope(QgsExpressionContextScope *scope)
Appends a scope to the end of the context.
void setFeature(const QgsFeature &feature)
Convenience function for setting a feature for the context.
Buffers information about expression fields for a vector layer.
void removeExpression(int index)
Remove an expression from the buffer.
void writeXml(QDomNode &layer_node, QDomDocument &document) const
Saves expressions to xml under the layer node.
void readXml(const QDomNode &layer_node)
Reads expressions from project file.
void updateFields(QgsFields &flds) const
Adds fields with the expressions buffered in this object to a QgsFields object.
void addExpression(const QString &exp, const QgsField &fld)
Add an expression to the buffer.
QList< QgsExpressionFieldBuffer::ExpressionField > expressions() const
void updateExpression(int index, const QString &exp)
Changes the expression at a given index.
void renameExpression(int index, const QString &name)
Renames an expression field at a given index.
An expression node which takes it value from a feature's field.
Class for parsing and evaluation of expressions (formerly called "search strings").
bool prepare(const QgsExpressionContext *context)
Gets the expression ready for evaluation - find out column indexes.
QString expression() const
Returns the original, unmodified expression string.
bool hasParserError() const
Returns true if an error occurred when parsing the input expression.
QString evalErrorString() const
Returns evaluation error.
QString parserErrorString() const
Returns parser error.
QSet< QString > referencedColumns() const
Gets list of columns referenced by the expression.
static QString quotedColumnRef(QString name)
Returns a quoted column reference (in double quotes)
bool hasEvalError() const
Returns true if an error occurred when evaluating last input.
static int expressionToLayerFieldIndex(const QString &expression, const QgsVectorLayer *layer)
Attempts to resolve an expression to a field index from the given layer.
bool needsGeometry() const
Returns true if the expression uses feature geometry for some computation.
QVariant evaluate()
Evaluate the feature and return the result.
Wrapper for iterator of features from vector data provider or vector layer.
bool nextFeature(QgsFeature &f)
Fetch next feature and stores in f, returns true on success.
bool close()
Call to end the iteration.
An interface for objects which generate feature renderers for vector layers.
Abstract base class for all 2D vector feature renderers.
static QgsFeatureRenderer * defaultRenderer(Qgis::GeometryType geomType)
Returns a new renderer - used by default in vector layers.
virtual void toSld(QDomDocument &doc, QDomElement &element, const QVariantMap &props=QVariantMap()) const
used from subclasses to create SLD Rule elements following SLD v1.1 specs
virtual QDomElement save(QDomDocument &doc, const QgsReadWriteContext &context)
Stores renderer properties to an XML element.
double referenceScale() const
Returns the symbology reference scale.
void setReferenceScale(double scale)
Sets the symbology reference scale.
static QgsFeatureRenderer * load(QDomElement &symbologyElem, const QgsReadWriteContext &context)
create a renderer from XML element
virtual bool accept(QgsStyleEntityVisitorInterface *visitor) const
Accepts the specified symbology visitor, causing it to visit all symbols associated with the renderer...
static QgsFeatureRenderer * loadSld(const QDomNode &node, Qgis::GeometryType geomType, QString &errorMessage)
Create a new renderer according to the information contained in the UserStyle element of a SLD style ...
This class wraps a request for features to a vector layer (or directly its vector data provider).
QgsFeatureRequest & setFlags(Qgis::FeatureRequestFlags flags)
Sets flags that affect how features will be fetched.
QgsFeatureRequest & setFilterFids(const QgsFeatureIds &fids)
Sets the feature IDs that should be fetched.
QgsFeatureRequest & setSubsetOfAttributes(const QgsAttributeList &attrs)
Set a subset of attributes that will be fetched.
QgsFeatureRequest & setFilterExpression(const QString &expression)
Set the filter expression.
QgsFeatureRequest & setExpressionContext(const QgsExpressionContext &context)
Sets the expression context used to evaluate filter expressions.
QgsFeatureRequest & setNoAttributes()
Set that no attributes will be fetched.
QgsFeatureRequest & setFilterFid(QgsFeatureId fid)
Sets the feature ID that should be fetched.
virtual bool addFeature(QgsFeature &feature, QgsFeatureSink::Flags flags=QgsFeatureSink::Flags())
Adds a single feature to the sink.
virtual QSet< QVariant > uniqueValues(int fieldIndex, int limit=-1) const
Returns the set of unique values contained within the specified fieldIndex from this source.
virtual Qgis::SpatialIndexPresence hasSpatialIndex() const
Returns an enum value representing the presence of a valid spatial index on the source,...
virtual QgsFeatureIds allFeatureIds() const
Returns a list of all feature IDs for features present in the source.
The feature class encapsulates a single feature including its unique ID, geometry and a list of field...
Q_INVOKABLE bool setAttribute(int field, const QVariant &attr)
Sets an attribute's value by field index.
bool hasGeometry() const
Returns true if the feature has an associated geometry.
bool isValid() const
Returns the validity of this feature.
Q_INVOKABLE QVariant attribute(const QString &name) const
Lookup attribute value by attribute name.
void setGeometry(const QgsGeometry &geometry)
Set the feature's geometry.
Base class for feedback objects to be used for cancellation of something running in a worker thread.
bool isCanceled() const
Tells whether the operation has been canceled already.
Stores information about constraints which may be present on a field.
ConstraintStrength
Strength of constraints.
void setConstraintStrength(Constraint constraint, ConstraintStrength strength)
Sets the strength of a constraint.
void setConstraintExpression(const QString &expression, const QString &description=QString())
Set the constraint expression for the field.
@ ConstraintOriginProvider
Constraint was set at data provider.
@ ConstraintOriginLayer
Constraint was set by layer.
ConstraintOrigin constraintOrigin(Constraint constraint) const
Returns the origin of a field constraint, or ConstraintOriginNotSet if the constraint is not present ...
QString constraintExpression() const
Returns the constraint expression for the field, if set.
Constraint
Constraints which may be present on a field.
@ ConstraintNotNull
Field may not be null.
@ ConstraintUnique
Field must have a unique value.
@ ConstraintExpression
Field has an expression constraint set. See constraintExpression().
QString constraintDescription() const
Returns the descriptive name for the constraint expression.
void setConstraint(Constraint constraint, ConstraintOrigin origin=ConstraintOriginLayer)
Sets a constraint on the field.
QFlags< Constraint > Constraints
Encapsulate a field in an attribute table or data source.
QString typeName() const
Gets the field type.
QString displayNameWithAlias() const
Returns the name to use when displaying this field and adds the alias in parenthesis if it is defined...
QString displayName() const
Returns the name to use when displaying this field.
Qgis::FieldConfigurationFlags configurationFlags
QgsDefaultValue defaultValueDefinition
QgsFieldConstraints constraints
QgsEditorWidgetSetup editorWidgetSetup() const
Gets the editor widget setup for the field.
Container of fields for a vector layer.
Q_INVOKABLE int indexFromName(const QString &fieldName) const
Gets the field index from the field name.
Q_INVOKABLE int indexOf(const QString &fieldName) const
Gets the field index from the field name.
Qgis::FieldOrigin fieldOrigin(int fieldIdx) const
Returns the field's origin (value from an enumeration).
int size() const
Returns number of items.
QgsField at(int i) const
Returns the field at particular index (must be in range 0..N-1).
int fieldOriginIndex(int fieldIdx) const
Returns the field's origin index (its meaning is specific to each type of origin).
Q_INVOKABLE int lookupField(const QString &fieldName) const
Looks up field's index from the field name.
The QgsGeometryOptions class contains options to automatically adjust geometries to constraints on a ...
A geometry is the spatial representation of a feature.
QgsBox3D boundingBox3D() const
Returns the 3D bounding box of the geometry.
bool equals(const QgsGeometry &geometry) const
Test if this geometry is exactly equal to another geometry.
QgsRectangle boundingBox() const
Returns the bounding box of the geometry.
void setMergeLines(bool merge)
Sets whether connected line features with identical label text should be merged prior to generating l...
void setOverlapHandling(Qgis::LabelOverlapHandling handling)
Sets the technique used to handle overlapping labels.
Line string geometry type, with support for z-dimension and m-values.
Alters the size of rendered diagrams using a linear scaling.
static void warning(const QString &msg)
Goes to qWarning.
This class models dependencies with or between map layers.
Base class for storage of map layer elevation properties.
static QString typeToString(Qgis::LayerType type)
Converts a map layer type to a string value.
virtual void readXml(const QDomElement &elem, const QgsReadWriteContext &context)
Reads configuration from a DOM element previously written by writeXml()
virtual QDomElement writeXml(QDomDocument &doc, const QgsReadWriteContext &context) const
Writes configuration to a DOM element, to be used later with readXml()
static QgsMapLayerLegend * defaultVectorLegend(QgsVectorLayer *vl)
Create new legend implementation for vector layer.
Base class for utility classes that encapsulate information necessary for rendering of map layers.
Base class for storage of map layer selection properties.
Stores style information (renderer, opacity, labeling, diagrams etc.) applicable to a map layer.
Base class for storage of map layer temporal properties.
Base class for all map layer types.
void readStyleManager(const QDomNode &layerNode)
Read style manager's configuration (if any). To be called by subclasses.
void dependenciesChanged()
Emitted when dependencies are changed.
void writeStyleManager(QDomNode &layerNode, QDomDocument &doc) const
Write style manager's configuration (if exists). To be called by subclasses.
QgsMapLayerLegend * legend() const
Can be nullptr.
void editingStopped()
Emitted when edited changes have been successfully written to the data provider.
void recalculateExtents() const
This is used to send a request that any mapcanvas using this layer update its extents.
virtual QgsRectangle extent() const
Returns the extent of the layer.
QString source() const
Returns the source for the layer.
Q_INVOKABLE QVariant customProperty(const QString &value, const QVariant &defaultValue=QVariant()) const
Read a custom property from layer.
int mBlockStyleChangedSignal
If non-zero, the styleChanged signal should not be emitted.
QString providerType() const
Returns the provider type (provider key) for this layer.
virtual void setExtent3D(const QgsBox3D &box)
Sets the extent.
void removeCustomProperty(const QString &key)
Remove a custom property from layer.
void setBlendMode(QPainter::CompositionMode blendMode)
Set the blending mode used for rendering a layer.
void configChanged()
Emitted whenever the configuration is changed.
void setMinimumScale(double scale)
Sets the minimum map scale (i.e.
static Qgis::DataProviderReadFlags providerReadFlags(const QDomNode &layerNode, QgsMapLayer::ReadFlags layerReadFlags)
Returns provider read flag deduced from layer read flags layerReadFlags and a dom node layerNode that...
QgsMapLayer::LayerFlags flags() const
Returns the flags for this layer.
void editingStarted()
Emitted when editing on this layer has started.
QgsCoordinateReferenceSystem crs
friend class QgsVectorLayer
void writeCustomProperties(QDomNode &layerNode, QDomDocument &doc) const
Write custom properties to project file.
virtual int listStylesInDatabase(QStringList &ids, QStringList &names, QStringList &descriptions, QString &msgError)
Lists all the style in db split into related to the layer and not related to.
virtual QString loadDefaultStyle(bool &resultFlag)
Retrieve the default style for this layer if one exists (either as a .qml file on disk or as a record...
void setDataSource(const QString &dataSource, const QString &baseName=QString(), const QString &provider=QString(), bool loadDefaultStyleFlag=false)
Updates the data source of the layer.
void triggerRepaint(bool deferredUpdate=false)
Will advise the map canvas (and any other interested party) that this layer requires to be repainted.
QString crsHtmlMetadata() const
Returns a HTML fragment containing the layer's CRS metadata, for use in the htmlMetadata() method.
void setMaximumScale(double scale)
Sets the maximum map scale (i.e.
QgsLayerMetadata metadata
QPainter::CompositionMode blendMode() const
Returns the current blending mode for a layer.
virtual void setOpacity(double opacity)
Sets the opacity for the layer, where opacity is a value between 0 (totally transparent) and 1....
void setFlags(QgsMapLayer::LayerFlags flags)
Returns the flags for this layer.
QString publicSource(bool hidePassword=false) const
Gets a version of the internal layer definition that has sensitive bits removed (for example,...
QSet< QgsMapLayerDependency > mDependencies
List of layers that may modify this layer on modification.
void readCustomProperties(const QDomNode &layerNode, const QString &keyStartsWith=QString())
Read custom properties from project file.
virtual void setMetadata(const QgsLayerMetadata &metadata)
Sets the layer's metadata store.
QFlags< StyleCategory > StyleCategories
Q_INVOKABLE void setCustomProperty(const QString &key, const QVariant &value)
Set a custom property for layer.
QString mProviderKey
Data provider key (name of the data provider)
QgsCoordinateTransformContext transformContext() const
Returns the layer data provider coordinate transform context or a default transform context if the la...
void styleChanged()
Signal emitted whenever a change affects the layer's style.
QUndoStack * undoStack()
Returns pointer to layer's undo stack.
std::unique_ptr< QgsDataProvider > mPreloadedProvider
Optionally used when loading a project, it is released when the layer is effectively created.
void rendererChanged()
Signal emitted when renderer is changed.
virtual QgsError error() const
Gets current status error.
void setScaleBasedVisibility(bool enabled)
Sets whether scale based visibility is enabled for the layer.
void dataSourceChanged()
Emitted whenever the layer's data source has been changed.
bool hasScaleBasedVisibility() const
Returns whether scale based visibility is enabled for the layer.
virtual QString getStyleFromDatabase(const QString &styleId, QString &msgError)
Returns the named style corresponding to style id provided.
void emitStyleChanged()
Triggers an emission of the styleChanged() signal.
void dataChanged()
Data of layer changed.
void willBeDeleted()
Emitted in the destructor when the layer is about to be deleted, but it is still in a perfectly valid...
virtual QgsBox3D extent3D() const
Returns the 3D extent of the layer.
virtual QgsMapLayer * clone() const =0
Returns a new instance equivalent to this one except for the id which is still unique.
void setName(const QString &name)
Set the display name of the layer.
virtual void setExtent(const QgsRectangle &rect)
Sets the extent.
virtual void resolveReferences(QgsProject *project)
Resolve references to other layers (kept as layer IDs after reading XML) into layer objects.
QString mDataSource
Data source description string, varies by layer type.
void setMapTipsEnabled(bool enabled)
Enable or disable map tips for this layer.
@ FlagReadExtentFromXml
Read extent from xml and skip get extent from provider.
@ FlagForceReadOnly
Force open as read only.
@ FlagDontResolveLayers
Don't resolve layer paths or create data providers for layers.
void setValid(bool valid)
Sets whether layer is valid or not.
void readCommonStyle(const QDomElement &layerElement, const QgsReadWriteContext &context, StyleCategories categories=AllStyleCategories)
Read style data common to all layer types.
QgsMapLayer::ReadFlags mReadFlags
Read flags. It's up to the subclass to respect these when restoring state from XML.
double minimumScale() const
Returns the minimum map scale (i.e.
void repaintRequested(bool deferredUpdate=false)
By emitting this signal the layer tells that either appearance or content have been changed and any v...
void setMapTipTemplate(const QString &mapTipTemplate)
The mapTip is a pretty, html representation for feature information.
Q_INVOKABLE QStringList customPropertyKeys() const
Returns list of all keys within custom properties.
QgsProject * project() const
Returns the parent project if this map layer is added to a project.
void setLegend(QgsMapLayerLegend *legend)
Assign a legend controller to the map layer.
bool mValid
Indicates if the layer is valid and can be drawn.
@ GeometryOptions
Geometry validation configuration.
@ AttributeTable
Attribute table settings: choice and order of columns, conditional styling.
@ LayerConfiguration
General configuration: identifiable, removable, searchable, display expression, read-only.
@ Rendering
Rendering: scale visibility, simplify method, opacity.
@ CustomProperties
Custom properties (by plugins for instance)
@ Fields
Aliases, widgets, WMS/WFS, expressions, constraints, virtual fields.
void layerModified()
Emitted when modifications has been done on layer.
void setProviderType(const QString &providerType)
Sets the providerType (provider key)
QString customPropertyHtmlMetadata() const
Returns an HTML fragment containing custom property information, for use in the htmlMetadata() method...
QString generalHtmlMetadata() const
Returns an HTML fragment containing general metadata information, for use in the htmlMetadata() metho...
void writeCommonStyle(QDomElement &layerElement, QDomDocument &document, const QgsReadWriteContext &context, StyleCategories categories=AllStyleCategories) const
Write style data common to all layer types.
double maximumScale() const
Returns the maximum map scale (i.e.
bool mShouldValidateCrs
true if the layer's CRS should be validated and invalid CRSes are not permitted.
void setCrs(const QgsCoordinateReferenceSystem &srs, bool emitSignal=true)
Sets layer's spatial reference system.
static void logMessage(const QString &message, const QString &tag=QString(), Qgis::MessageLevel level=Qgis::MessageLevel::Warning, bool notifyUser=true)
Adds a message to the log instance (and creates it if necessary).
static QgsExpression * expressionFromOgcFilter(const QDomElement &element, QgsVectorLayer *layer=nullptr)
Parse XML with OGC filter into QGIS expression.
static Qgis::BlendMode getBlendModeEnum(QPainter::CompositionMode blendMode)
Returns a Qgis::BlendMode corresponding to a QPainter::CompositionMode.
static QPainter::CompositionMode getCompositionMode(Qgis::BlendMode blendMode)
Returns a QPainter::CompositionMode corresponding to a Qgis::BlendMode.
Contains settings for how a map layer will be labeled.
double yOffset
Vertical offset of label.
const QgsLabelPlacementSettings & placementSettings() const
Returns the label placement settings.
double maxCurvedCharAngleIn
Maximum angle between inside curved label characters (valid range 20.0 to 60.0).
void setFormat(const QgsTextFormat &format)
Sets the label text formatting settings, e.g., font settings, buffer settings, etc.
double xOffset
Horizontal offset of label.
Qgis::LabelPlacement placement
Label placement mode.
double angleOffset
Label rotation, in degrees clockwise.
double maxCurvedCharAngleOut
Maximum angle between outside curved label characters (valid range -20.0 to -95.0)
Qgis::RenderUnit offsetUnits
Units for offsets of label.
bool isExpression
true if this label is made from a expression string, e.g., FieldName || 'mm'
const QgsLabelLineSettings & lineSettings() const
Returns the label line settings, which contain settings related to how the label engine places and fo...
Qgis::UpsideDownLabelHandling upsidedownLabels
Controls whether upside down labels are displayed and how they are handled.
QString fieldName
Name of field (or an expression) to use for label text.
A class to represent a 2D point.
Point geometry type, with support for z-dimension and m-values.
Encapsulates properties and constraints relating to fetching elevation profiles from different source...
virtual QString translate(const QString &context, const QString &sourceText, const char *disambiguation=nullptr, int n=-1) const =0
Translates a string using the Qt QTranslator mechanism.
Encapsulates a QGIS project, including sets of map layers and their styles, layouts,...
QgsRelationManager * relationManager
bool commitChanges(QStringList &commitErrors, bool stopEditing=true, QgsVectorLayer *vectorLayer=nullptr)
Attempts to commit to the underlying data provider any buffered changes made since the last to call t...
static QgsProject * instance()
Returns the QgsProject singleton instance.
bool rollBack(QStringList &rollbackErrors, bool stopEditing=true, QgsVectorLayer *vectorLayer=nullptr)
Stops a current editing operation on vectorLayer and discards any uncommitted edits.
bool startEditing(QgsVectorLayer *vectorLayer=nullptr)
Makes the layer editable.
QMap< QString, QgsMapLayer * > mapLayers(const bool validOnly=false) const
Returns a map of all registered layers by layer ID.
A grouped map of multiple QgsProperty objects, each referenced by a integer key value.
void setProperty(int key, const QgsProperty &property)
Adds a property to the collection and takes ownership of it.
Definition for a property.
@ Double
Double value (including negative values)
static QgsProperty fromField(const QString &fieldName, bool isActive=true)
Returns a new FieldBasedProperty created from the specified field name.
QString absoluteToRelativeUri(const QString &providerKey, const QString &uri, const QgsReadWriteContext &context) const
Converts absolute path(s) to relative path(s) in the given provider-specific URI.
static QgsProviderRegistry * instance(const QString &pluginPath=QString())
Means of accessing canonical single instance.
QString relativeToAbsoluteUri(const QString &providerKey, const QString &uri, const QgsReadWriteContext &context) const
Converts relative path(s) to absolute path(s) in the given provider-specific URI.
Allows entering a context category and takes care of leaving this category on deletion of the class.
The class is used as a container of context for various read/write operations on other objects.
MAYBE_UNUSED NODISCARD QgsReadWriteContextCategoryPopper enterCategory(const QString &category, const QString &details=QString()) const
Push a category to the stack.
const QgsProjectTranslator * projectTranslator() const
Returns the project translator.
QgsCoordinateTransformContext transformContext() const
Returns data provider coordinate transform context.
const QgsPathResolver & pathResolver() const
Returns path resolver for conversion between relative and absolute paths.
A rectangle specified with double values.
Q_INVOKABLE QString toString(int precision=16) const
Returns a string representation of form xmin,ymin : xmax,ymax Coordinates will be truncated to the sp...
void set(const QgsPointXY &p1, const QgsPointXY &p2, bool normalize=true)
Sets the rectangle from two QgsPoints.
void combineExtentWith(const QgsRectangle &rect)
Expands the rectangle so that it covers both the original rectangle and the given rectangle.
void normalize()
Normalize the rectangle so it has non-negative width/height.
void setNull()
Mark a rectangle as being null (holding no spatial information).
QList< QgsRelation > referencedRelations(const QgsVectorLayer *layer=nullptr) const
Gets all relations where this layer is the referenced part (i.e.
void relationsLoaded()
Emitted when the relations were loaded after reading a project.
Represents a relationship between two vector layers.
Contains information about the context of a rendering operation.
double rendererScale() const
Returns the renderer map scale.
bool useRenderingOptimization() const
Returns true if the rendering optimization (geometry simplification) can be executed.
A child rule for QgsRuleBasedLabeling.
void appendChild(QgsRuleBasedLabeling::Rule *rule)
add child rule, take ownership, sets this as parent
Rule based labeling for a vector layer.
A boolean settings entry.
A template class for enum and flag settings entry.
static QgsSettingsTreeNode * sTreeQgis
This class is a composition of two QSettings instances:
Renders the diagrams for all features with the same settings.
Renders diagrams using mixed diagram render types.
Manages stored expressions regarding creation, modification and storing in the project.
bool writeXml(QDomNode &layerNode) const
Writes the stored expressions out in XML format.
bool readXml(const QDomNode &layerNode)
Reads the stored expressions in in XML format.
An interface for classes which can visit style entity (e.g.
static double rendererFrameRate(const QgsFeatureRenderer *renderer)
Calculates the frame rate (in frames per second) at which the given renderer must be redrawn.
static QgsStringMap getSvgParameterList(QDomElement &element)
static void mergeScaleDependencies(double mScaleMinDenom, double mScaleMaxDenom, QVariantMap &props)
Merges the local scale limits, if any, with the ones already in the map, if any.
static bool fillFromSld(QDomElement &element, Qt::BrushStyle &brushStyle, QColor &color)
static Qgis::RenderUnit decodeSldUom(const QString &str, double *scaleFactor=nullptr)
Decodes a SLD unit of measure string to a render unit.
long addTask(QgsTask *task, int priority=0)
Adds a task to the manager.
void taskCompleted()
Will be emitted by task to indicate its successful completion.
void taskTerminated()
Will be emitted by task if it has terminated for any reason other then completion (e....
bool isActive() const
Returns true if the temporal property is active.
Container for settings relating to a text buffer.
void setColor(const QColor &color)
Sets the color for the buffer.
void setSizeUnit(Qgis::RenderUnit unit)
Sets the units used for the buffer size.
void setEnabled(bool enabled)
Sets whether the text buffer will be drawn.
void setSize(double size)
Sets the size of the buffer.
Container for all settings relating to text rendering.
void setColor(const QColor &color)
Sets the color that text will be rendered in.
void setSize(double size)
Sets the size for rendered text.
void setFont(const QFont &font)
Sets the font used for rendering text.
void setSizeUnit(Qgis::RenderUnit unit)
Sets the units for the size of rendered text.
void setBuffer(const QgsTextBufferSettings &bufferSettings)
Sets the text's buffer settings.
This class allows including a set of layers in a database-side transaction, provided the layer data p...
QString createSavepoint(QString &error)
creates a save point returns empty string on error returns the last created savepoint if it's not dir...
void dirtied(const QString &sql, const QString &name)
Emitted if a sql query is executed and the underlying data is modified.
static bool isNull(const QVariant &variant, bool silenceNullWarnings=false)
Returns true if the specified variant should be considered a NULL value.
This is the base class for vector data providers.
virtual QString dataComment() const override
Returns a short comment for the data that this provider is providing access to (e....
virtual QVariant aggregate(Qgis::Aggregate aggregate, int index, const QgsAggregateCalculator::AggregateParameters ¶meters, QgsExpressionContext *context, bool &ok, QgsFeatureIds *fids=nullptr) const
Calculates an aggregated value from the layer's features.
static const int EditingCapabilities
Bitmask of all provider's editing capabilities.
long long featureCount() const override=0
Number of features in the layer.
virtual QgsFeatureRenderer * createRenderer(const QVariantMap &configuration=QVariantMap()) const
Creates a new vector layer feature renderer, using provider backend specific information.
virtual QString storageType() const
Returns the permanent storage type for this layer as a friendly name.
virtual QStringList uniqueStringsMatching(int index, const QString &substring, int limit=-1, QgsFeedback *feedback=nullptr) const
Returns unique string values of an attribute which contain a specified subset string.
void raiseError(const QString &msg) const
Signals an error in this provider.
virtual bool isSqlQuery() const
Returns true if the layer is a query (SQL) layer.
virtual bool empty() const
Returns true if the layer does not contain any feature.
virtual Q_INVOKABLE Qgis::VectorProviderCapabilities capabilities() const
Returns flags containing the supported capabilities.
virtual QgsAttributeList pkAttributeIndexes() const
Returns list of indexes of fields that make up the primary key.
virtual void handlePostCloneOperations(QgsVectorDataProvider *source)
Handles any post-clone operations required after this vector data provider was cloned from the source...
virtual QSet< QgsMapLayerDependency > dependencies() const
Gets the list of layer ids on which this layer depends.
virtual void setEncoding(const QString &e)
Set encoding used for accessing data from layer.
virtual Qgis::VectorLayerTypeFlags vectorLayerTypeFlags() const
Returns the vector layer type flags.
QVariant maximumValue(int index) const override
Returns the maximum value of an attribute.
QgsDataProviderElevationProperties * elevationProperties() override
Returns the provider's elevation properties.
QgsFields fields() const override=0
Returns the fields associated with this data provider.
Qgis::WkbType wkbType() const override=0
Returns the geometry type which is returned by this layer.
QVariant minimumValue(int index) const override
Returns the minimum value of an attribute.
QString encoding() const
Returns the encoding which is used for accessing data.
virtual QVariant defaultValue(int fieldIndex) const
Returns any literal default values which are present at the provider for a specified field index.
QgsFieldConstraints::Constraints fieldConstraints(int fieldIndex) const
Returns any constraints which are present at the provider for a specified field index.
virtual QgsTransaction * transaction() const
Returns the transaction this data provider is included in, if any.
virtual QgsAbstractVectorLayerLabeling * createLabeling(const QVariantMap &configuration=QVariantMap()) const
Creates labeling settings, using provider backend specific information.
QgsVectorDataProviderTemporalCapabilities * temporalCapabilities() override
Returns the provider's temporal capabilities.
QString capabilitiesString() const
Returns the above in friendly format.
bool commitChanges(QStringList &commitErrors, bool stopEditing=true)
Attempts to commit any changes to disk.
void committedAttributesDeleted(const QString &layerId, const QgsAttributeList &deletedAttributes)
Emitted after attribute deletion has been committed to the layer.
virtual bool deleteFeature(QgsFeatureId fid)
Delete a feature from the layer (but does not commit it)
QgsFeatureIds deletedFeatureIds() const
Returns a list of deleted feature IDs which are not committed.
QgsChangedAttributesMap changedAttributeValues() const
Returns a map of features with changed attributes values which are not committed.
void committedAttributeValuesChanges(const QString &layerId, const QgsChangedAttributesMap &changedAttributesValues)
Emitted after feature attribute value changes have been committed to the layer.
virtual bool renameAttribute(int attr, const QString &newName)
Renames an attribute field (but does not commit it)
void geometryChanged(QgsFeatureId fid, const QgsGeometry &geom)
Emitted when a feature's geometry is changed.
virtual bool deleteFeatures(const QgsFeatureIds &fid)
Deletes a set of features from the layer (but does not commit it)
virtual bool addAttribute(const QgsField &field)
Adds an attribute field (but does not commit it) returns true if the field was added.
void committedAttributesAdded(const QString &layerId, const QList< QgsField > &addedAttributes)
Emitted after attribute addition has been committed to the layer.
virtual bool addFeatures(QgsFeatureList &features)
Insert a copy of the given features into the layer (but does not commit it)
virtual bool changeAttributeValues(QgsFeatureId fid, const QgsAttributeMap &newValues, const QgsAttributeMap &oldValues)
Changes values of attributes (but does not commit it).
QgsFeatureMap addedFeatures() const
Returns a map of new features which are not committed.
virtual bool isModified() const
Returns true if the provider has been modified since the last commit.
void updateFields(QgsFields &fields)
Updates fields.
void committedFeaturesAdded(const QString &layerId, const QgsFeatureList &addedFeatures)
Emitted after feature addition has been committed to the layer.
void featureDeleted(QgsFeatureId fid)
Emitted when a feature was deleted from the buffer.
QgsGeometryMap changedGeometries() const
Returns a map of features with changed geometries which are not committed.
QgsVectorLayerEditBufferGroup * editBufferGroup() const
Returns the parent edit buffer group for this edit buffer, or nullptr if not part of a group.
QgsAttributeList deletedAttributeIds() const
Returns a list of deleted attributes fields which are not committed.
void attributeAdded(int idx)
Emitted when an attribute was added to the buffer.
void committedGeometriesChanges(const QString &layerId, const QgsGeometryMap &changedGeometries)
Emitted after feature geometry changes have been committed to the layer.
virtual bool addFeature(QgsFeature &f)
Adds a feature.
virtual void rollBack()
Stop editing and discard the edits.
void attributeValueChanged(QgsFeatureId fid, int idx, const QVariant &value)
Emitted when a feature's attribute value has been changed.
void attributeDeleted(int idx)
Emitted when an attribute was deleted from the buffer.
void featureAdded(QgsFeatureId fid)
Emitted when a feature has been added to the buffer.
virtual bool commitChanges(QStringList &commitErrors)
Attempts to commit any changes to disk.
virtual bool deleteAttribute(int attr)
Deletes an attribute field (but does not commit it)
virtual bool changeAttributeValue(QgsFeatureId fid, int field, const QVariant &newValue, const QVariant &oldValue=QVariant())
Changed an attribute value (but does not commit it)
virtual bool changeGeometry(QgsFeatureId fid, const QgsGeometry &geom)
Change feature's geometry.
void layerModified()
Emitted when modifications has been done on layer.
void committedFeaturesRemoved(const QString &layerId, const QgsFeatureIds &deletedFeatureIds)
Emitted after feature removal has been committed to the layer.
Contains utility functions for editing vector layers.
int translateFeature(QgsFeatureId featureId, double dx, double dy)
Translates feature by dx, dy.
bool insertVertex(double x, double y, QgsFeatureId atFeatureId, int beforeVertex)
Insert a new vertex before the given vertex number, in the given ring, item (first number is index 0)...
Q_DECL_DEPRECATED Qgis::GeometryOperationResult addPart(const QVector< QgsPointXY > &ring, QgsFeatureId featureId)
Adds a new part polygon to a multipart feature.
Qgis::VectorEditResult deleteVertex(QgsFeatureId featureId, int vertex)
Deletes a vertex from a feature.
int addTopologicalPoints(const QgsGeometry &geom)
Adds topological points for every vertex of the geometry.
Q_DECL_DEPRECATED Qgis::GeometryOperationResult splitParts(const QVector< QgsPointXY > &splitLine, bool topologicalEditing=false)
Splits parts cut by the given line.
Q_DECL_DEPRECATED Qgis::GeometryOperationResult splitFeatures(const QVector< QgsPointXY > &splitLine, bool topologicalEditing=false)
Splits features cut by the given line.
bool moveVertex(double x, double y, QgsFeatureId atFeatureId, int atVertex)
Moves the vertex at the given position number, ring and item (first number is index 0),...
Q_DECL_DEPRECATED Qgis::GeometryOperationResult addRing(const QVector< QgsPointXY > &ring, const QgsFeatureIds &targetFeatureIds=QgsFeatureIds(), QgsFeatureId *modifiedFeatureId=nullptr)
Adds a ring to polygon/multipolygon features.
Vector layer specific subclass of QgsMapLayerElevationProperties.
void setDefaultsFromLayer(QgsMapLayer *layer) override
Sets default properties based on sensible choices for the given map layer.
QgsVectorLayerElevationProperties * clone() const override
Creates a clone of the properties.
Counts the features in a QgsVectorLayer in task.
QHash< QString, long long > symbolFeatureCountMap() const
Returns the count for each symbol.
void cancel() override
Notifies the task that it should terminate.
QHash< QString, QgsFeatureIds > symbolFeatureIdMap() const
Returns the QgsFeatureIds for each symbol.
A feature iterator which iterates over features from a QgsVectorLayer.
Manages joined fields for a vector layer.
void resolveReferences(QgsProject *project)
Resolves layer IDs of joined layers using given project's available layers.
bool addJoin(const QgsVectorLayerJoinInfo &joinInfo)
Joins another vector layer to this layer.
void readXml(const QDomNode &layer_node)
Reads joins from project file.
void writeXml(QDomNode &layer_node, QDomDocument &document) const
Saves mVectorJoins to xml under the layer node.
const QgsVectorLayerJoinInfo * joinForFieldIndex(int index, const QgsFields &fields, int &sourceFieldIndex) const
Finds the vector join for a layer field index.
bool changeAttributeValue(QgsFeatureId fid, int field, const QVariant &newValue, const QVariant &oldValue=QVariant())
Changes attribute value in joined layers.
bool removeJoin(const QString &joinLayerId)
Removes a vector layer join.
bool containsJoins() const
Quick way to test if there is any join at all.
bool changeAttributeValues(QgsFeatureId fid, const QgsAttributeMap &newValues, const QgsAttributeMap &oldValues=QgsAttributeMap())
Changes attributes' values in joined layers.
bool addFeatures(QgsFeatureList &features, QgsFeatureSink::Flags flags=QgsFeatureSink::Flags()) override
Adds a list of features in joined layers.
void joinedFieldsChanged()
Emitted whenever the list of joined fields changes (e.g.
void updateFields(QgsFields &fields)
Updates field map with joined attributes.
bool deleteFeature(QgsFeatureId fid, QgsVectorLayer::DeleteContext *context=nullptr) const
Deletes a feature from joined layers.
const QgsVectorJoinList & vectorJoins() const
Defines left outer join from our vector layer to some other vector layer.
QString targetFieldName() const
Returns name of the field of our layer that will be used for join.
QString joinLayerId() const
ID of the joined layer - may be used to resolve reference to the joined layer.
Implementation of QgsAbstractProfileGenerator for vector layers.
Implementation of threaded rendering for vector layers.
Implementation of layer selection properties for vector layers.
QgsVectorLayerSelectionProperties * clone() const override
Creates a clone of the properties.
QDomElement writeXml(QDomElement &element, QDomDocument &doc, const QgsReadWriteContext &context) override
Writes the properties to a DOM element, to be used later with readXml().
bool readXml(const QDomElement &element, const QgsReadWriteContext &context) override
Reads temporal properties from a DOM element previously written by writeXml().
Basic implementation of the labeling interface.
Implementation of map layer temporal properties for vector layers.
void guessDefaultsFromFields(const QgsFields &fields)
Attempts to setup the temporal properties by scanning a set of fields and looking for standard naming...
void setDefaultsFromDataProviderTemporalCapabilities(const QgsDataProviderTemporalCapabilities *capabilities) override
Sets the layers temporal settings to appropriate defaults based on a provider's temporal capabilities...
Contains settings which reflect the context in which vector layer tool operations should consider.
QgsExpressionContext * expressionContext() const
Returns the optional expression context used by the vector layer tools.
static QString guessFriendlyIdentifierField(const QgsFields &fields, bool *foundFriendly=nullptr)
Given a set of fields, attempts to pick the "most useful" field for user-friendly identification of f...
Represents a vector layer which manages a vector based data sets.
void setLabeling(QgsAbstractVectorLayerLabeling *labeling)
Sets labeling configuration.
QString attributeDisplayName(int index) const
Convenience function that returns the attribute alias if defined or the field name else.
QVariant maximumValue(int index) const FINAL
Returns the maximum value for an attribute column or an invalid variant in case of error.
int addExpressionField(const QString &exp, const QgsField &fld)
Add a new field which is calculated by the expression specified.
void committedFeaturesAdded(const QString &layerId, const QgsFeatureList &addedFeatures)
Emitted when features are added to the provider if not in transaction mode.
void setExtent(const QgsRectangle &rect) FINAL
Sets the extent.
Q_DECL_DEPRECATED Qgis::GeometryOperationResult addPart(const QList< QgsPointXY > &ring)
Adds a new part polygon to a multipart feature.
static const QgsSettingsEntryEnumFlag< Qgis::VectorRenderingSimplificationFlags > * settingsSimplifyDrawingHints
QgsRectangle sourceExtent() const FINAL
Returns the extent of all geometries from the source.
void featureBlendModeChanged(QPainter::CompositionMode blendMode)
Signal emitted when setFeatureBlendMode() is called.
bool labelsEnabled() const
Returns whether the layer contains labels which are enabled and should be drawn.
bool writeSymbology(QDomNode &node, QDomDocument &doc, QString &errorMessage, const QgsReadWriteContext &context, QgsMapLayer::StyleCategories categories=QgsMapLayer::AllStyleCategories) const FINAL
Write the style for the layer into the document provided.
bool isModified() const override
Returns true if the provider has been modified since the last commit.
bool writeStyle(QDomNode &node, QDomDocument &doc, QString &errorMessage, const QgsReadWriteContext &context, QgsMapLayer::StyleCategories categories=QgsMapLayer::AllStyleCategories) const FINAL
Write just the symbology information for the layer into the document.
void addFeatureRendererGenerator(QgsFeatureRendererGenerator *generator)
Adds a new feature renderer generator to the layer.
Q_DECL_DEPRECATED void setExcludeAttributesWfs(const QSet< QString > &att)
A set of attributes that are not advertised in WFS requests with QGIS server.
Q_INVOKABLE bool deleteSelectedFeatures(int *deletedCount=nullptr, QgsVectorLayer::DeleteContext *context=nullptr)
Deletes the selected features.
Q_INVOKABLE void selectByRect(QgsRectangle &rect, Qgis::SelectBehavior behavior=Qgis::SelectBehavior::SetSelection)
Selects features found within the search rectangle (in layer's coordinates)
void removeFieldAlias(int index)
Removes an alias (a display name) for attributes to display in dialogs.
void setAuxiliaryLayer(QgsAuxiliaryLayer *layer=nullptr)
Sets the current auxiliary layer.
void beforeRemovingExpressionField(int idx)
Will be emitted, when an expression field is going to be deleted from this vector layer.
Q_INVOKABLE bool deleteFeatures(const QgsFeatureIds &fids, QgsVectorLayer::DeleteContext *context=nullptr)
Deletes a set of features from the layer (but does not commit it)
QString loadDefaultStyle(bool &resultFlag) FINAL
Retrieve the default style for this layer if one exists (either as a .qml file on disk or as a record...
void committedGeometriesChanges(const QString &layerId, const QgsGeometryMap &changedGeometries)
Emitted when geometry changes are saved to the provider if not in transaction mode.
void beforeCommitChanges(bool stopEditing)
Emitted before changes are committed to the data provider.
Q_INVOKABLE bool startEditing()
Makes the layer editable.
void setFieldConfigurationFlags(int index, Qgis::FieldConfigurationFlags flags)
Sets the configuration flags of the field at given index.
QMap< QgsFieldConstraints::Constraint, QgsFieldConstraints::ConstraintStrength > fieldConstraintsAndStrength(int fieldIndex) const
Returns a map of constraint with their strength for a specific field of the layer.
bool addJoin(const QgsVectorLayerJoinInfo &joinInfo)
Joins another vector layer to this layer.
QSet< QgsMapLayerDependency > dependencies() const FINAL
Gets the list of dependencies.
QgsMapLayerTemporalProperties * temporalProperties() override
Returns the layer's temporal properties.
Q_INVOKABLE bool changeAttributeValue(QgsFeatureId fid, int field, const QVariant &newValue, const QVariant &oldValue=QVariant(), bool skipDefaultValues=false, QgsVectorLayerToolsContext *context=nullptr)
Changes an attribute value for a feature (but does not immediately commit the changes).
Q_DECL_DEPRECATED Qgis::GeometryOperationResult splitFeatures(const QVector< QgsPointXY > &splitLine, bool topologicalEditing=false)
Splits features cut by the given line.
QgsDefaultValue defaultValueDefinition(int index) const
Returns the definition of the expression used when calculating the default value for a field.
QgsExpressionContextScope * createExpressionContextScope() const FINAL
This method needs to be reimplemented in all classes which implement this interface and return an exp...
QgsMapLayerRenderer * createMapRenderer(QgsRenderContext &rendererContext) FINAL
Returns new instance of QgsMapLayerRenderer that will be used for rendering of given context.
QgsVectorLayerFeatureCounter * countSymbolFeatures(bool storeSymbolFids=false)
Count features for symbols.
QPainter::CompositionMode featureBlendMode() const
Returns the current blending mode for features.
bool hasMapTips() const FINAL
Returns true if the layer contains map tips.
QString constraintExpression(int index) const
Returns the constraint expression for for a specified field index, if set.
bool addAttribute(const QgsField &field)
Add an attribute field (but does not commit it) returns true if the field was added.
void attributeAdded(int idx)
Will be emitted, when a new attribute has been added to this vector layer.
QString capabilitiesString() const
Capabilities for this layer, comma separated and translated.
void deselect(QgsFeatureId featureId)
Deselects feature by its ID.
void allowCommitChanged()
Emitted whenever the allowCommit() property of this layer changes.
friend class QgsVectorLayerEditBuffer
void editCommandStarted(const QString &text)
Signal emitted when a new edit command has been started.
void updateFields()
Will regenerate the fields property of this layer by obtaining all fields from the dataProvider,...
bool isSpatial() const FINAL
Returns true if this is a geometry layer and false in case of NoGeometry (table only) or UnknownGeome...
const QgsDiagramLayerSettings * diagramLayerSettings() const
void setFieldConstraint(int index, QgsFieldConstraints::Constraint constraint, QgsFieldConstraints::ConstraintStrength strength=QgsFieldConstraints::ConstraintStrengthHard)
Sets a constraint for a specified field index.
bool loadAuxiliaryLayer(const QgsAuxiliaryStorage &storage, const QString &key=QString())
Loads the auxiliary layer for this vector layer.
bool insertVertex(double x, double y, QgsFeatureId atFeatureId, int beforeVertex)
Inserts a new vertex before the given vertex number, in the given ring, item (first number is index 0...
QgsFeatureIterator getFeatures(const QgsFeatureRequest &request=QgsFeatureRequest()) const FINAL
Queries the layer for features specified in request.
QgsAbstractProfileGenerator * createProfileGenerator(const QgsProfileRequest &request) override
Given a profile request, returns a new profile generator ready for generating elevation profiles.
QString htmlMetadata() const FINAL
Obtain a formatted HTML string containing assorted metadata for this layer.
Q_INVOKABLE QgsRectangle boundingBoxOfSelected() const
Returns the bounding box of the selected features. If there is no selection, QgsRectangle(0,...
bool addFeatures(QgsFeatureList &features, QgsFeatureSink::Flags flags=QgsFeatureSink::Flags()) FINAL
Adds a list of features to the sink.
Q_INVOKABLE QgsFeatureList selectedFeatures() const
Returns a copy of the user-selected features.
QString expressionField(int index) const
Returns the expression used for a given expression field.
bool readSymbology(const QDomNode &layerNode, QString &errorMessage, QgsReadWriteContext &context, QgsMapLayer::StyleCategories categories=QgsMapLayer::AllStyleCategories) FINAL
Read the symbology for the current layer from the DOM node supplied.
void removeFeatureRendererGenerator(const QString &id)
Removes the feature renderer with matching id from the layer.
Q_INVOKABLE bool deleteFeature(QgsFeatureId fid, QgsVectorLayer::DeleteContext *context=nullptr)
Deletes a feature from the layer (but does not commit it).
friend class QgsVectorLayerEditPassthrough
void setSimplifyMethod(const QgsVectorSimplifyMethod &simplifyMethod)
Sets the simplification settings for fast rendering of features.
void editCommandDestroyed()
Signal emitted, when an edit command is destroyed.
QVariant aggregate(Qgis::Aggregate aggregate, const QString &fieldOrExpression, const QgsAggregateCalculator::AggregateParameters ¶meters=QgsAggregateCalculator::AggregateParameters(), QgsExpressionContext *context=nullptr, bool *ok=nullptr, QgsFeatureIds *fids=nullptr, QgsFeedback *feedback=nullptr, QString *error=nullptr) const
Calculates an aggregated value from the layer's features.
QgsFieldConstraints::Constraints fieldConstraints(int fieldIndex) const
Returns any constraints which are present for a specified field index.
static const QgsSettingsEntryEnumFlag< Qgis::VectorSimplificationAlgorithm > * settingsSimplifyAlgorithm
Q_DECL_DEPRECATED QSet< QString > excludeAttributesWms() const
A set of attributes that are not advertised in WMS requests with QGIS server.
QgsBox3D sourceExtent3D() const FINAL
Returns the 3D extent of all geometries from the source.
QgsFeatureIds symbolFeatureIds(const QString &legendKey) const
Ids of features rendered with specified legend key.
void removeFieldConstraint(int index, QgsFieldConstraints::Constraint constraint)
Removes a constraint for a specified field index.
int selectedFeatureCount() const
Returns the number of features that are selected in this layer.
void featuresDeleted(const QgsFeatureIds &fids)
Emitted when features have been deleted.
Qgis::VectorLayerTypeFlags vectorLayerTypeFlags() const
Returns the vector layer type flags.
void setLabelsEnabled(bool enabled)
Sets whether labels should be enabled for the layer.
void subsetStringChanged()
Emitted when the layer's subset string has changed.
QgsAuxiliaryLayer * auxiliaryLayer()
Returns the current auxiliary layer.
void setCoordinateSystem()
Setup the coordinate system transformation for the layer.
void committedFeaturesRemoved(const QString &layerId, const QgsFeatureIds &deletedFeatureIds)
Emitted when features are deleted from the provider if not in transaction mode.
void updateExpressionField(int index, const QString &exp)
Changes the expression used to define an expression based (virtual) field.
Q_INVOKABLE void selectByExpression(const QString &expression, Qgis::SelectBehavior behavior=Qgis::SelectBehavior::SetSelection, QgsExpressionContext *context=nullptr)
Selects matching features using an expression.
static const QgsSettingsEntryDouble * settingsSimplifyMaxScale
~QgsVectorLayer() override
QgsCoordinateReferenceSystem sourceCrs() const FINAL
Returns the coordinate reference system for features in the source.
void endEditCommand()
Finish edit command and add it to undo/redo stack.
void destroyEditCommand()
Destroy active command and reverts all changes in it.
bool isAuxiliaryField(int index, int &srcIndex) const
Returns true if the field comes from the auxiliary layer, false otherwise.
QgsExpressionContext createExpressionContext() const FINAL
This method needs to be reimplemented in all classes which implement this interface and return an exp...
QList< QgsRelation > referencingRelations(int idx) const
Returns the layer's relations, where the foreign key is on this layer.
Q_DECL_DEPRECATED QSet< QString > excludeAttributesWfs() const
A set of attributes that are not advertised in WFS requests with QGIS server.
Q_DECL_DEPRECATED Qgis::GeometryOperationResult splitParts(const QVector< QgsPointXY > &splitLine, bool topologicalEditing=false)
Splits parts cut by the given line.
void setDefaultValueDefinition(int index, const QgsDefaultValue &definition)
Sets the definition of the expression to use when calculating the default value for a field.
bool diagramsEnabled() const
Returns whether the layer contains diagrams which are enabled and should be drawn.
void setAllowCommit(bool allowCommit)
Controls, if the layer is allowed to commit changes.
bool setDependencies(const QSet< QgsMapLayerDependency > &layers) FINAL
Sets the list of dependencies.
void symbolFeatureCountMapChanged()
Emitted when the feature count for symbols on this layer has been recalculated.
Q_INVOKABLE const QgsFeatureIds & selectedFeatureIds() const
Returns a list of the selected features IDs in this layer.
Qgis::VectorEditResult deleteVertex(QgsFeatureId featureId, int vertex)
Deletes a vertex from a feature.
void setFeatureBlendMode(QPainter::CompositionMode blendMode)
Sets the blending mode used for rendering each feature.
QString constraintDescription(int index) const
Returns the descriptive name for the constraint expression for a specified field index.
void writeCustomSymbology(QDomElement &element, QDomDocument &doc, QString &errorMessage) const
Signal emitted whenever the symbology (QML-file) for this layer is being written.
const QgsAbstractVectorLayerLabeling * labeling() const
Access to const labeling configuration.
void setProviderEncoding(const QString &encoding)
Sets the text encoding of the data provider.
bool writeSld(QDomNode &node, QDomDocument &doc, QString &errorMessage, const QVariantMap &props=QVariantMap()) const
Writes the symbology of the layer into the document provided in SLD 1.1 format.
void setDisplayExpression(const QString &displayExpression)
Set the preview expression, used to create a human readable preview string.
virtual bool deleteAttribute(int attr)
Deletes an attribute field (but does not commit it).
static const QgsSettingsEntryBool * settingsSimplifyLocal
void resolveReferences(QgsProject *project) FINAL
Resolves references to other layers (kept as layer IDs after reading XML) into layer objects.
bool simplifyDrawingCanbeApplied(const QgsRenderContext &renderContext, Qgis::VectorRenderingSimplificationFlag simplifyHint) const
Returns whether the VectorLayer can apply the specified simplification hint.
QgsMapLayerElevationProperties * elevationProperties() override
Returns the layer's elevation properties.
bool removeJoin(const QString &joinLayerId)
Removes a vector layer join.
Q_INVOKABLE void invertSelectionInRectangle(QgsRectangle &rect)
Inverts selection of features found within the search rectangle (in layer's coordinates)
void setRenderer(QgsFeatureRenderer *r)
Sets the feature renderer which will be invoked to represent this layer in 2D map views.
Q_INVOKABLE void selectAll()
Select all the features.
bool isEditable() const FINAL
Returns true if the provider is in editing mode.
QStringList commitErrors() const
Returns a list containing any error messages generated when attempting to commit changes to the layer...
QString storageType() const
Returns the permanent storage type for this layer as a friendly name.
bool readExtentFromXml() const
Returns true if the extent is read from the XML document when data source has no metadata,...
QString dataComment() const
Returns a description for this layer as defined in the data provider.
bool accept(QgsStyleEntityVisitorInterface *visitor) const override
QgsGeometryOptions * geometryOptions() const
Configuration and logic to apply automatically on any edit happening on this layer.
QgsStringMap attributeAliases() const
Returns a map of field name to attribute alias.
Q_INVOKABLE int translateFeature(QgsFeatureId featureId, double dx, double dy)
Translates feature by dx, dy.
Q_INVOKABLE Qgis::WkbType wkbType() const FINAL
Returns the WKBType or WKBUnknown in case of error.
virtual void updateExtents(bool force=false)
Update the extents for the layer.
void attributeDeleted(int idx)
Will be emitted, when an attribute has been deleted from this vector layer.
QgsFeatureRenderer * renderer()
Returns the feature renderer used for rendering the features in the layer in 2D map views.
void beforeEditingStarted()
Emitted before editing on this layer is started.
void committedAttributeValuesChanges(const QString &layerId, const QgsChangedAttributesMap &changedAttributesValues)
Emitted when attribute value changes are saved to the provider if not in transaction mode.
void committedAttributesAdded(const QString &layerId, const QList< QgsField > &addedAttributes)
Emitted when attributes are added to the provider if not in transaction mode.
void setEditFormConfig(const QgsEditFormConfig &editFormConfig)
Sets the editFormConfig (configuration) of the form used to represent this vector layer.
Qgis::FieldConfigurationFlags fieldConfigurationFlags(int index) const
Returns the configuration flags of the field at given index.
void committedAttributesDeleted(const QString &layerId, const QgsAttributeList &deletedAttributes)
Emitted when attributes are deleted from the provider if not in transaction mode.
QString displayExpression
void displayExpressionChanged()
Emitted when the display expression changes.
QVariant minimumValue(int index) const FINAL
Returns the minimum value for an attribute column or an invalid variant in case of error.
QgsFeatureIterator getSelectedFeatures(QgsFeatureRequest request=QgsFeatureRequest()) const
Returns an iterator of the selected features.
void setEditorWidgetSetup(int index, const QgsEditorWidgetSetup &setup)
Sets the editor widget setup for the field at the specified index.
void setConstraintExpression(int index, const QString &expression, const QString &description=QString())
Sets the constraint expression for the specified field index.
Q_INVOKABLE bool rollBack(bool deleteBuffer=true)
Stops a current editing operation and discards any uncommitted edits.
bool readStyle(const QDomNode &node, QString &errorMessage, QgsReadWriteContext &context, QgsMapLayer::StyleCategories categories=QgsMapLayer::AllStyleCategories) FINAL
Read the style for the current layer from the DOM node supplied.
bool updateFeature(QgsFeature &feature, bool skipDefaultValues=false)
Updates an existing feature in the layer, replacing the attributes and geometry for the feature with ...
Q_INVOKABLE bool commitChanges(bool stopEditing=true)
Attempts to commit to the underlying data provider any buffered changes made since the last to call t...
void setFieldConfigurationFlag(int index, Qgis::FieldConfigurationFlag flag, bool active)
Sets the given configuration flag for the field at given index to be active or not.
QgsVectorDataProvider * dataProvider() FINAL
Returns the layer's data provider, it may be nullptr.
void setFieldDuplicatePolicy(int index, Qgis::FieldDuplicatePolicy policy)
Sets a duplicate policy for the field with the specified index.
bool setReadOnly(bool readonly=true)
Makes layer read-only (editing disabled) or not.
void editFormConfigChanged()
Will be emitted whenever the edit form configuration of this layer changes.
Q_INVOKABLE void modifySelection(const QgsFeatureIds &selectIds, const QgsFeatureIds &deselectIds)
Modifies the current selection on this layer.
void setWeakRelations(const QList< QgsWeakRelation > &relations)
Sets the layer's weak relations.
void reselect()
Reselects the previous set of selected features.
void select(QgsFeatureId featureId)
Selects feature by its ID.
QgsEditorWidgetSetup editorWidgetSetup(int index) const
Returns the editor widget setup for the field at the specified index.
long long featureCount() const FINAL
Returns feature count including changes which have not yet been committed If you need only the count ...
void setReadExtentFromXml(bool readExtentFromXml)
Flag allowing to indicate if the extent has to be read from the XML document when data source has no ...
void afterCommitChanges()
Emitted after changes are committed to the data provider.
QgsVectorLayer * clone() const override
Returns a new instance equivalent to this one.
QgsAttributeTableConfig attributeTableConfig() const
Returns the attribute table configuration object.
QgsActionManager * actions()
Returns all layer actions defined on this layer.
bool readSld(const QDomNode &node, QString &errorMessage) FINAL
Q_INVOKABLE void selectByIds(const QgsFeatureIds &ids, Qgis::SelectBehavior behavior=Qgis::SelectBehavior::SetSelection)
Selects matching features using a list of feature IDs.
QStringList uniqueStringsMatching(int index, const QString &substring, int limit=-1, QgsFeedback *feedback=nullptr) const
Returns unique string values of an attribute which contain a specified subset string.
void raiseError(const QString &msg)
Signals an error related to this vector layer.
void editCommandEnded()
Signal emitted, when an edit command successfully ended.
void supportsEditingChanged()
Emitted when the read only state or the data provider of this layer is changed.
void readOnlyChanged()
Emitted when the read only state of this layer is changed.
void removeExpressionField(int index)
Removes an expression field.
virtual void setTransformContext(const QgsCoordinateTransformContext &transformContext) override
Sets the coordinate transform context to transformContext.
void attributeValueChanged(QgsFeatureId fid, int idx, const QVariant &value)
Emitted whenever an attribute value change is done in the edit buffer.
static Q_DECL_DEPRECATED void drawVertexMarker(double x, double y, QPainter &p, Qgis::VertexMarkerType type, int vertexSize)
Draws a vertex symbol at (screen) coordinates x, y.
bool addFeature(QgsFeature &feature, QgsFeatureSink::Flags flags=QgsFeatureSink::Flags()) FINAL
Adds a single feature to the sink.
void setFieldAlias(int index, const QString &aliasString)
Sets an alias (a display name) for attributes to display in dialogs.
friend class QgsVectorLayerFeatureSource
void minimumAndMaximumValue(int index, QVariant &minimum, QVariant &maximum) const
Calculates both the minimum and maximum value for an attribute column.
Q_INVOKABLE Qgis::GeometryType geometryType() const
Returns point, line or polygon.
QgsRectangle extent() const FINAL
Returns the extent of the layer.
Q_DECL_DEPRECATED void setExcludeAttributesWms(const QSet< QString > &att)
A set of attributes that are not advertised in WMS requests with QGIS server.
void setAttributeTableConfig(const QgsAttributeTableConfig &attributeTableConfig)
Sets the attribute table configuration object.
virtual bool setSubsetString(const QString &subset)
Sets the string (typically sql) used to define a subset of the layer.
bool readXml(const QDomNode &layer_node, QgsReadWriteContext &context) FINAL
Reads vector layer specific state from project file Dom node.
void afterRollBack()
Emitted after changes are rolled back.
QString decodedSource(const QString &source, const QString &provider, const QgsReadWriteContext &context) const FINAL
Called by readLayerXML(), used by derived classes to decode provider's specific data source from proj...
void setDiagramLayerSettings(const QgsDiagramLayerSettings &s)
QList< QgsWeakRelation > weakRelations() const
Returns the layer's weak relations as specified in the layer's style.
const QgsVectorSimplifyMethod & simplifyMethod() const
Returns the simplification settings for fast rendering of features.
void selectionChanged(const QgsFeatureIds &selected, const QgsFeatureIds &deselected, bool clearAndSelect)
Emitted when selection was changed.
void beforeAddingExpressionField(const QString &fieldName)
Will be emitted, when an expression field is going to be added to this vector layer.
bool deleteAttributes(const QList< int > &attrs)
Deletes a list of attribute fields (but does not commit it)
void updatedFields()
Emitted whenever the fields available from this layer have been changed.
QVariant defaultValue(int index, const QgsFeature &feature=QgsFeature(), QgsExpressionContext *context=nullptr) const
Returns the calculated default value for the specified field index.
void featureAdded(QgsFeatureId fid)
Emitted when a new feature has been added to the layer.
QString sourceName() const FINAL
Returns a friendly display name for the source.
QString attributeAlias(int index) const
Returns the alias of an attribute name or a null string if there is no alias.
void featureDeleted(QgsFeatureId fid)
Emitted when a feature has been deleted.
QgsBox3D extent3D() const FINAL
Returns the 3D extent of the layer.
Q_INVOKABLE void removeSelection()
Clear selection.
bool allowCommit() const
Controls, if the layer is allowed to commit changes.
QgsConditionalLayerStyles * conditionalStyles() const
Returns the conditional styles that are set for this layer.
void readCustomSymbology(const QDomElement &element, QString &errorMessage)
Signal emitted whenever the symbology (QML-file) for this layer is being read.
void reload() FINAL
Synchronises with changes in the datasource.
const QList< QgsVectorLayerJoinInfo > vectorJoins() const
bool renameAttribute(int index, const QString &newName)
Renames an attribute field (but does not commit it).
bool isSqlQuery() const
Returns true if the layer is a query (SQL) layer.
void beforeRollBack()
Emitted before changes are rolled back.
QgsAttributeList primaryKeyAttributes() const
Returns the list of attributes which make up the layer's primary keys.
bool writeXml(QDomNode &layer_node, QDomDocument &doc, const QgsReadWriteContext &context) const FINAL
Writes vector layer specific state to project file Dom node.
QString encodedSource(const QString &source, const QgsReadWriteContext &context) const FINAL
Called by writeLayerXML(), used by derived classes to encode provider's specific data source to proje...
void beginEditCommand(const QString &text)
Create edit command for undo/redo operations.
QString displayField() const
This is a shorthand for accessing the displayExpression if it is a simple field.
Q_DECL_DEPRECATED Qgis::GeometryOperationResult addRing(const QVector< QgsPointXY > &ring, QgsFeatureId *featureId=nullptr)
Adds a ring to polygon/multipolygon features.
void setDiagramRenderer(QgsDiagramRenderer *r)
Sets diagram rendering object (takes ownership)
void geometryChanged(QgsFeatureId fid, const QgsGeometry &geometry)
Emitted whenever a geometry change is done in the edit buffer.
QgsEditFormConfig editFormConfig
QList< const QgsFeatureRendererGenerator * > featureRendererGenerators() const
Returns a list of the feature renderer generators owned by the layer.
Qgis::FeatureAvailability hasFeatures() const FINAL
Determines if this vector layer has features.
bool moveVertex(double x, double y, QgsFeatureId atFeatureId, int atVertex)
Moves the vertex at the given position number, ring and item (first number is index 0),...
QgsGeometry getGeometry(QgsFeatureId fid) const
Queries the layer for the geometry at the given id.
int addTopologicalPoints(const QgsGeometry &geom)
Adds topological points for every vertex of the geometry.
void beforeModifiedCheck() const
Emitted when the layer is checked for modifications. Use for last-minute additions.
Q_INVOKABLE QgsFeature getFeature(QgsFeatureId fid) const
Queries the layer for the feature with the given id.
Q_INVOKABLE void invertSelection()
Selects not selected features and deselects selected ones.
const QgsDiagramRenderer * diagramRenderer() const
void setExtent3D(const QgsBox3D &rect) FINAL
Sets the extent.
Q_INVOKABLE bool changeAttributeValues(QgsFeatureId fid, const QgsAttributeMap &newValues, const QgsAttributeMap &oldValues=QgsAttributeMap(), bool skipDefaultValues=false, QgsVectorLayerToolsContext *context=nullptr)
Changes attributes' values for a feature (but does not immediately commit the changes).
QgsMapLayerSelectionProperties * selectionProperties() override
Returns the layer's selection properties.
bool changeGeometry(QgsFeatureId fid, QgsGeometry &geometry, bool skipDefaultValue=false)
Changes a feature's geometry within the layer's edit buffer (but does not immediately commit the chan...
static const QgsSettingsEntryDouble * settingsSimplifyDrawingTol
Qgis::SpatialIndexPresence hasSpatialIndex() const override
QSet< QVariant > uniqueValues(int fieldIndex, int limit=-1) const FINAL
Calculates a list of unique values contained within an attribute in the layer.
void setFieldSplitPolicy(int index, Qgis::FieldDomainSplitPolicy policy)
Sets a split policy for the field with the specified index.
bool forceLocalOptimization() const
Gets where the simplification executes, after fetch the geometries from provider, or when supported,...
Qgis::VectorRenderingSimplificationFlags simplifyHints() const
Gets the simplification hints of the vector layer managed.
float maximumScale() const
Gets the maximum scale at which the layer should be simplified.
Qgis::VectorSimplificationAlgorithm simplifyAlgorithm() const
Gets the local simplification algorithm of the vector layer managed.
void setThreshold(float threshold)
Sets the simplification threshold of the vector layer managed.
void setForceLocalOptimization(bool localOptimization)
Sets where the simplification executes, after fetch the geometries from provider, or when supported,...
void setSimplifyHints(Qgis::VectorRenderingSimplificationFlags simplifyHints)
Sets the simplification hints of the vector layer managed.
float threshold() const
Gets the simplification threshold of the vector layer managed.
void setMaximumScale(float maximumScale)
Sets the maximum scale at which the layer should be simplified.
void setSimplifyAlgorithm(Qgis::VectorSimplificationAlgorithm simplifyAlgorithm)
Sets the local simplification algorithm of the vector layer managed.
@ Referencing
The layer is referencing (or the "child" / "right" layer in the relationship)
@ Referenced
The layer is referenced (or the "parent" / "left" left in the relationship)
static void writeXml(const QgsVectorLayer *layer, WeakRelationType type, const QgsRelation &relation, QDomNode &node, QDomDocument &doc)
Writes a weak relation infoto an XML structure.
static QgsWeakRelation readXml(const QgsVectorLayer *layer, WeakRelationType type, const QDomNode &node, const QgsPathResolver resolver)
Returns a weak relation for the given layer.
static Qgis::GeometryType geometryType(Qgis::WkbType type)
Returns the geometry type for a WKB type, e.g., both MultiPolygon and CurvePolygon would have a Polyg...
static QString displayString(Qgis::WkbType type)
Returns a non-translated display string type for a WKB type, e.g., the geometry name used in WKT geom...
static QString geometryDisplayString(Qgis::GeometryType type)
Returns a display string for a geometry type.
static QDomElement writeVariant(const QVariant &value, QDomDocument &doc)
Write a QVariant to a QDomElement.
static QgsBox3D readBox3D(const QDomElement &element)
Decodes a DOM element to a 3D box.
static QVariant readVariant(const QDomElement &element)
Read a QVariant from a QDomElement.
static QgsRectangle readRectangle(const QDomElement &element)
@ UnknownCount
Provider returned an unknown feature count.
double ANALYSIS_EXPORT angle(QgsPoint *p1, QgsPoint *p2, QgsPoint *p3, QgsPoint *p4)
Calculates the angle between two segments (in 2 dimension, z-values are ignored)
As part of the API refactoring and improvements which landed in the Processing API was substantially reworked from the x version This was done in order to allow much of the underlying Processing framework to be ported into c
bool qgsVariantEqual(const QVariant &lhs, const QVariant &rhs)
Compares two QVariant values and returns whether they are equal, two NULL values are always treated a...
bool qgsVariantLessThan(const QVariant &lhs, const QVariant &rhs)
Compares two QVariant values and returns whether the first is less than the second.
bool qgsVariantGreaterThan(const QVariant &lhs, const QVariant &rhs)
Compares two QVariant values and returns whether the first is greater than the second.
T qgsEnumKeyToValue(const QString &key, const T &defaultValue, bool tryValueAsKey=true, bool *returnOk=nullptr)
Returns the value corresponding to the given key of an enum.
QString qgsEnumValueToKey(const T &value, bool *returnOk=nullptr)
Returns the value for the given key of an enum.
QString qgsFlagValueToKeys(const T &value, bool *returnOk=nullptr)
Returns the value for the given keys of a flag.
T qgsFlagKeysToValue(const QString &keys, const T &defaultValue, bool tryValueAsKey=true, bool *returnOk=nullptr)
Returns the value corresponding to the given keys of a flag.
QMap< QString, QString > QgsStringMap
QVector< QgsPoint > QgsPointSequence
QMap< int, QVariant > QgsAttributeMap
QList< QgsFeature > QgsFeatureList
QSet< QgsFeatureId > QgsFeatureIds
qint64 QgsFeatureId
64 bit feature ids negative numbers are used for uncommitted/newly added features
QList< int > QgsAttributeList
#define QgsDebugMsgLevel(str, level)
#define QgsDebugError(str)
QMap< int, QgsPropertyDefinition > QgsPropertiesDefinition
Definition of available properties.
#define RENDERER_TAG_NAME
#define QGIS_PROTECT_QOBJECT_THREAD_ACCESS_NON_FATAL
#define QGIS_PROTECT_QOBJECT_THREAD_ACCESS
bool saveStyle_t(const QString &uri, const QString &qmlStyle, const QString &sldStyle, const QString &styleName, const QString &styleDescription, const QString &uiFileContent, bool useAsDefault, QString &errCause)
int listStyles_t(const QString &uri, QStringList &ids, QStringList &names, QStringList &descriptions, QString &errCause)
QString getStyleById_t(const QString &uri, QString styleID, QString &errCause)
bool deleteStyleById_t(const QString &uri, QString styleID, QString &errCause)
QString loadStyle_t(const QString &uri, QString &errCause)
QList< int > QgsAttributeList
QMap< QgsFeatureId, QgsFeature > QgsFeatureMap
A bundle of parameters controlling aggregate calculation.
Setting options for creating vector data providers.
Context for cascade delete features.
QList< QgsVectorLayer * > handledLayers(bool includeAuxiliaryLayers=true) const
Returns a list of all layers affected by the delete operation.
QMap< QgsVectorLayer *, QgsFeatureIds > mHandledFeatures
QgsFeatureIds handledFeatures(QgsVectorLayer *layer) const
Returns a list of feature IDs from the specified layer affected by the delete operation.
Setting options for loading vector layers.
bool skipCrsValidation
Controls whether the layer is allowed to have an invalid/unknown CRS.
bool forceReadOnly
Controls whether the layer is forced to be load as Read Only.
bool loadDefaultStyle
Set to true if the default layer style should be loaded.
QgsCoordinateTransformContext transformContext
Coordinate transform context.
QgsCoordinateReferenceSystem fallbackCrs
Fallback layer coordinate reference system.
Qgis::WkbType fallbackWkbType
Fallback geometry type.
bool loadAllStoredStyles
Controls whether the stored styles will be all loaded.